asuna🐝

die-sappearing until the right time comes

[asuna-luino]

ⵌ 𝐃𝐀𝐓𝐀 𝐋𝐎𝐆𝐒 (masterlist) : ♡ click here!

── .✦ !𝐬𝐮𝐧🍒 [ she/her ; 20+ ; asian ]

✉︎ multifandom blog + requests are open ✉︎ other platforms: wattpad + ao3 ✉︎ fandom: ⟢ gachiakuta + bluelock + dr stone + tba

ⵌ 𝐖𝐀𝐑𝐍𝐈𝐍𝐆𝐒 (rules) : ♡ click here!

+ divider cr: @uzmacchiato

@ asuna-luino all rights reserved do not steal or alter my works in any form.

[asuna-luino]

Secret Hubby

ⵌ summary: It's no surprise that marrying the infamous Ishigami Senku comes with a price. But for how long could either of you keep your relationship a secret before someone finds out?

ⵌ pairing: senku ishigami x reader ⵌ wc: 3.4k

ⵌ note: you could say this is kinda pornish with a plot, the previous one-shot was so ahh, i need to use one of my ace cards to reduce the cringe, so here we are + divider cr: @uzmacchiato + masterlist

"Are you sure you're not emotionally constipated, Senku?"

The three generals were enjoying their lunch together right outside the main laboratory while Xeno and the others were currently at an international congress of scientists across the globe. They won't be returning until next summer, meaning Gen and Chrome would be the ones who need to deal with Senku's "aromatic" arse.

Usually, it was Stanley who bothered to give the man advice about commitment and long-term plans — surprisingly, but with his absence, the responsibility falls on the two fellows. It wouldn't be much of a trouble if not for the fact that people have been asking if the world's renowned scientist ever thought about expanding his lineage for the future of science. Because someone, please tell me, who in their right mind would be fine with such a waste of a good gene?

"They shouldn't be worrying about where I stick my dick when humanity is still in progress." The man replied, unbothered. That's Senku for you. Sometimes Chrome wondered why he even asked him these questions.

"But dear Senku, aren't you worried you might be left behind in survivability progress?" Gen hummed, stirring his tea with a spoon, letting the warmth dissipate into the air. After a few seconds, he lifted the cup and took a small sip, delighted with the sweet floral taste. He should get more of this variation.

Senku scoffed at that. What is the mentalist trying to say here? Survivability progress, really? "Your point is?"

"Chrome and Ruri are about to welcome their second child, and even Xeno has adopted more than 6. Not to mention Ryusui with his third, while you…" Gen smiled slightly, tilting his head in a pretence mock. "You know, single and available." He took another sip of his tea, perfectly warm and lovely.

Chrome, who was turned down earlier, puffed his chest proudly, thanking Gen for backing him up. He's a happy man, especially at the mention of his wife. He could name all the things he loved about her, and it would probably end after a few weeks of nonstop yap. To be loved is to be seen, they said.

"It was never a competition, mentalist. Besides, I have far more important things to worry about than to dabble in a love quarry." He retorted. Quickly finishing his bento to get his butt to work as soon as possible. He had a list of stuff that needed to be done before evening, and couldn't afford to waste his time on idle chatter.

The lunch continued with Gen adding some workplace gossip, while Chrome would tell about his struggle in handling his family, with Ruri being extra clingy at home. Meanwhile, Senku would occasionally nod his head and mutter a few yeses and mock reassurances here and there. Once everyone had finished their food, the three went to their separate sections of the lab.

The day blends into calculations, meetings, and 10 minutes nap every few hours. Senku may be a great scientist, but he is also a human; that means he was not excluded from normal human needs such as food, rest and perhaps even desire. And as if the world is on his side, he received a call from a certain someone not so far from his workplace. He holds the mobile in one hand while the other is busy calibrating the titration curve.

"You're not resting? It's your evening nap hour, isn't it?"

He shoots, no warm greetings whatsoever. Well, he doesn't need to; those questions alone are warm enough for you. He could hear your amused giggle at the end of the line, so he smiled at that. The sound of you laughing somehow soothes him. He sets down the apparatus to shift his focus to you completely. It's not like he could calculate with his mind in the cloud.

"I tried, but your daughter won't stop kicking." You huffed, partially annoyed, but your hand unconsciously moved to gently rub your growing belly. The due date is around the corner, and you're no different from Pinocchio if you said you're not afraid; your nose would surely grow a meter at every word spoken.

"She has been particularly active these days, hasn't she?" He hummed, checking the watch on his wrist. It's almost time to punch out. He picks all the important documents and keeps them in the drawer before sliding his bag around his shoulder. "I'll be home in 20 minutes. Crave anything?"

You thought about his question for a moment. You're not particularly hungry, nor are you full either. This is hard. "Maybe something light? Preferably from the Nanami's. Their chef made the best food." You added. After another quick convo, he ended the call to leave the building. The drive home was quiet, save for the car wheezing like an old man at every bumper.

Senku stops by Nanami's and gets himself — well, gets you — an ice cream and hash browns. Thankfully, he doesn't bump into the owner, or else he might invite him for a drink, and he would definitely need to decline the man's offer. Ryusui was never the type to back out easily. With the food in hand, he returned to the car and proceeded to drive home.

Right turn, left turn, a roundabout, a highway, left turn, and finally, he's home. He parked the car and went inside using a key he had duplicated months ago. You always told him to just let you open the door for him, but he insisted on having his own key, so that you don't have to get up from wherever you are in the house just to open the door for him.

"You're home." You waddled to him from the kitchen, a mug of chrysanthemum tea in hand. He takes off his shoes and coat, then hang it by the door before approaching your slow figure. He engulfed you in a hug, to which you were about to return when the baby kicked again. "Ah!"

He let go of you after hearing your pained wince. "Has this been going on all day?" He holds your face in his hand, as you nod.

He handed over the paper bag of food to you to get on his knees. He then patted your belly with his hand, "You got one hell of a kick, kid. Don't bully your mother too much. That's my job." He chuckles to himself.

You pout. What a meanie. Unbothered by the consequences, you tug his hair in rebellion. If he's going to play devil tonight, who are you not to fight back? You're no saint, and he knows that. Should've thought this through when he decided to come inside months ago. Whose fault was it? His, obviously. Plus, you were at the laboratory to work under Xeno once again, not to mother this man's child.

But that was long ago, and he thankfully owned up to it and courted you not long after the incident. Some may wonder: how the hell did Xeno's junior from before the petrification even end up with THE Senku Ishigami? Well, you two met at one of the conferences and were paired for a research project. Yada yada, since millennials had passed while you were petrified, the younger man somehow went from Byakuya's adoptive son to your senior. Such unfairness.

Not like you have ever bothered to know either guy before the Medusa event. The name Ishigami was never in your dictionary until he pounded into you on the lab table that night. Uh, crazy lore.

"You want it?" He suddenly asked, way too nonchalant to your liking.

The thing was, you two hadn't been active since the pregnancy due to his worrying that he might strain you further. For someone who had never cared about anyone — especially during manual labour — he is somewhat gentler when it comes to you. But it's not like you don't want to do it; rather, he had just come home from an 11-hour shift, and he surely needs a rest after such a long day.

You scrunch your face at his question, and he blinks at your reaction. Did he say something wrong? The two of you made it clear that hair tugging means sex, so why act disgusted now?

"What?" He stood up, arms wrapped around your waist. "Besides, it offers benefits. An intercourse could help reduce the potential of going past 37 weeks—"

You shut him up with a kiss. There it is, no more science talk. Senku melts instantly and holds the back of your neck while the other remain on your back. Now he went tongue-to-tongue, fighting for dominance. Just because he always lets you have your way doesn't mean he'll give up easily, especially now. So he guides you slowly until your back hits the dining table, then with that twig strength, he lifts you to sit on the table surface as he takes his space between your legs.

Deliberately, his fingers crawl their way under your nightgown until his forefinger reaches your undergarment. You hummed softly between the kisses, urging him to go further. He smiled against your lips and bite it, earning himself a gasp from you.

"Ouch… you're mean." You whined, pulling away from the kiss. He chuckles under his breath, going in for another kiss when suddenly, his phone vibrates from inside his work bag. You turned your head to the sound coming from the living room. "You're not going to answer it?"

He sighed and let go of you before striding to get his phone. Who could possibly call him right after work? He made it clear that no work call is allowed after he punched out, especially on the day before the weekend. Without much thought, he answered it.

"Ishigami's here."

"SENKU!!!! IT'S ME, TAIJU!! MANNN I FINALLY GOT YOUR NEW NUMBER!"

Yeah. Great, big Oaf doesn't really listen, does he? There's a reason why he changed his number, and this is one of them. No use dwelling on it now, better to get this conversation over with, quickly.

"Yo, what is it that ya need, big oaf?" He said in disinterest, pinky subconsciously picking on his ear, rubbing that one spot to calm his nerves.

"YUZU—" But then, he heard Taiju's shouting was cut off by Yuzuriha's more gentle voice.

"Hello, Senku. We are planning to do a gender reveal party in 2 weeks and were hoping you could make it. Are you free that day? Chrome said your schedule has been rather packed lately."

Senku thought about it for a moment. Your due date is approaching, and he has requested a week off for an unrevealed reason from Xeno. That unrevealed reason is being by your side to welcome your child. If he were not to attend Taiju's important day, would it rise suspicous? They were the best of friends since childhood, and to randomly not attend is definitely not a wise choice.

"I'll check it with my assistant after the weekend. No promise, though." He answered. This might be the best excuse he could come up with. Yuzuriha thanked him and ended the call. Senku rubbed his face, sighing softly. This is the con of having a secret partner.

The good thing is, he got to protect you from being surrounded by those who see him as a god for rebuilding humanity, or those who wouldn't stop obsessing over everything he did in his life. Yet, that means he needs to lie even to his closest circle. He can't have all the good parts of life, can he? Curse his bad luck.

"Is everything alright?" You called from the dining table, getting down slowly to waddle to him.

"Just Yuzuriha and Taiju. They're doing a gender reveal party soon, and I don't think I'll be attending." He holds your arms to stabilise you and guide you to sit on the nearby couch.

"Couldn't you tell them about us? I'm sure they won't do anything funny about it." You tried to assure him, but he shook his head. His hand found your belly, gently caressing it.

"I trust them, yes. But I know Taiju; he's not going to be discreet about me having a partner or being a father. Plus, I don't want to burden Yuzuriha with information that carries so much weight." He explained, pulling your head to rest on his shoulder.

"Then, how long will this be a secret?" You hummed softly, to which Senku shook his head.

"We'll let them know after our daughter is born, and once you're stable. I thought about possible post-partum depression, and planning to hire someone to care for you and the baby while I'm away for work. Though they need to go home before I return, to not cross paths." He nodded to himself, drafting his schedule in his mind.

Your finger traces his chest as he mumbles, not really listening to him. As if realising he's losing your attention, he stands up abruptly; that caught you off guard. He turned to you for a moment without saying anything before leaving to take the food he bought earlier. Then he returned to his seat next to you.

The two of you began to eat your snack. He dipped the hash brown into some chilli sauce and fed you. Second bite, dip, third bite, dip, fourth bite; but out of nowhere, he accidentally smudges some sauce on your chin. You were going to wipe it with a tissue when he leaned in and stuck his tongue out.

The wet organ then glided over your chin suggestively before he captured your lips into a slightly spicy kiss, thanks to the sauce. He held the back of your head, pulling you deeper into the kiss as his tongue mines its way into your mouth like a miner, touching every surface he could reach. He hummed into the kiss, loving the warmth of your skin.

He gently pushed your shoulder against the backseat, then he slowly slid you to your side to lie you down on the couch instead. Caging you under him as he got on all four above you. He needed to be quick with whatever he had planned, not wanting to put too much pressure on your back. Using his knee, he spread your legs apart without breaking the kiss.

He broke the kiss to take a deep breath, then dived in without giving you a chance to dominate him like you usually do. He feels like handling you today; besides, he shouldn't tire you too much, so yeah.

His hands made their exploration, mapping every patch of your skin with his fingertips. It's not unfamiliar, as he had long memorised every single coordinate. But every experience feels different to him, as if no matter how many times he mapped you, he'll never feel truly satisfied. Like a thirsty scientist in search of water in the middle of a desert.

With his left hand, he slid it under your sleepwear, letting it climb over the soft, bouncy hills. While his right hand continue it's dive until it reaches the first obstacle, a patch of cloth with an obvious wet spot in the middle of it. Hm, curioso?

His index finger pushed the undie open like a curtain and slid in a middle finger, followed by his ring finger. He slid them in till the base of his fingers so easily, thanks to the lubrication from the kiss alone. Who would have thought a simple kiss could get you all wet? Maybe you were sexually frustrated over the past few months of not getting anything.

The hand that was previously fondling your breasts made its escape through your collar. He gripped your chin, holding your face before pulling out of the long kiss. Trails of saliva that connected you two dripped onto your chin. He then used his thumb to smudge the fluid over your lips; a flushed smirk on his face at the sight of you so… drunk of kisses.

After seeing that you were ready, he started pulling his fingers in and out of your… pussy lips. Wet squelches filled the room as he plunged his fingers into you rhythmically while his thumb continued to rub in circles. You were squeezing him like a vice, it's tempting him to go faster, just to see how fast he could make you—

"Mhm—!"

Before you could gasp out in pleasure, he swallowed your moans with another round of kisses. Gushes of arousal fluid squirted out of you, wetting the couch, yet Senku's hand remained steadfast in its pace. Instead of slowing down, he somehow went faster, increasing his speed. His palm was basically clapping your clit like he was giving it a round of half an applause. Get it?

You squirmed, overstimulated by his fingers alone. The fact that he was relentless didn't help. You gripped his shirt, unsure of what to do with yourself. On one hand, you want him to continue, yet on the other hand, you want him to keep going, to make you feel good. Decisions, decisions.

Before Senku could pull his fingers out, another gush of fluid popped out of you, but this one is a lot thinner than your first orgasm. Confused, he inches his fingers to his nose, sniffing them. It smelled different; he had a hunch what it could be, but he couldn't confirm it without a taste test. With that, he suckled his fluid-stained fingers.

And instead of tasting like lactic acid like usual, this fluid tasted… sweet, mineral-like. His eyes widened in surprise as panic began to set in. He looked at your half-conscious state from being overstimulated and quickly adjusted your nightwear to cover you properly, and rushed to your shared bedroom to pick up your bags of clothes in case of emergencies.

After throwing the bags into the car, he went back in, picked you up and ran out of the house. If one was wondering what got him so worked up, your water just broke, thanks to his aid. Orgasms truly are the best support when it comes to labour, aren't they?

In the morning of the next day, Yuzuriha and Taiju were going home from a prenatal check when they saw a familiar leek head walking into the maternity ward. In his hands were bags of food and beverages. What is Senku doing in the hospital? Could he be visiting a friend? Though, isn't maternity wards usually don't allow visitors?

"That's weird." Taiju rubbed his chin in confusion. He couldn't comprehend seeing Senku in here. He'd never seen the guy coming here before during Yuzuriha's prenatal checkups.

"Hey, do you think what I'm thinking, love?" Yuzuriha smiled at Taiju. She had some ideas in her head, but rather not voiced it outloud until the scientist told them himself. Maybe he had his reason for keeping this a secret, and she respected it.

"Senku must have really loved children, or he's helping around!" Taiju laughed proudly. Happy at the thought of his friend being a very kind person. Yuzuriha nodded in reply, not denying or agreeing with his statement. Time will tell, anyway. There's no need to think about it too much.

Meanwhile, with Senku, he set the food and beverage on the bedside table. You were nursing your daughter. Though sometimes she would randomly unlatch and cry, which was stressful, but Senku was always there to calm you down or handle her. He sat at the edge of the bed, hands rubbing your arm softly,

"I think I saw Yuzuriha on my way here." He muttered, not too loud to disturb other mothers, but loud enough for you to hear him. You hummed, blinking sleepily at him. He understood the sign and picked the baby from latching to your breast. Then, he set her in the baby incubator.

After that, he helped you sit up properly before explaining, "I bought some sushi. They should be safe. I made sure to ask Francois to make it specifically for you and told them to keep it a secret."

"Thank you, darling." You smiled at him, to which he let out an unamused cough into his palm as his ears began to change colour. There's a reason why you two rarely use pet names. Either way, as long as you were happy, he would let this slide.

It's not like this marriage will remain a secret any longer, so he'd better get used to it. Especially when being called in public places. The great Senku Ishigami may look nonchalant to the public's eyes, but only you, his wife, know what was hidden beneath that calm exterior.

© asuna-luino 2026

masterlist

taglist: @verysanesenkufan @alxzisss @cruelsecrettreasure

[asuna-luino]

Happy Cake Day!

ⵌ summary: It's Byakuya's birthday, and Senku's going to gift him a cake! But oh well, the leek head isn't the best man when it comes to affection, especially in public.

ⵌ pairing: senku ishigami x reader ⵌ wc: 1.3k

ⵌ note: boring ahh one-shot, i wanna make it freaky, but it's not freak month yet + divider cr: @uzmacchiato + masterlist

"It's Byakuya's birthday in two days?"

You flipped through the calendar on your friend's study table. It's no surprise he doesn't plan anything for his own old man, being the nonchalant ahh leekhead that he is. Ah, language. Anywho, since you've known the man for over a decade, why not hold something for his special day?

"Don't you want to buy him a cake or a pastry whatsoever? Birthday only comes once a year, you know?" You turned to Senku, who was reading an article on the bed. He hummed, yet continued to flip through the magazine, unbothered.

You hopped off the table and approached him. Then, you placed your feet on his leg, kicking it rhythmically. That caught his attention, and he sighed as he sat up. He closed the mags and slide it under his pillow.

"He celebrates mine twice a year."

"You're not helping your case here, selfish Senku." Lying down, you rolled on the bed. He just watched you rolling on his legs. To say that it was not tempting to suddenly sit up and watch you fall would be an obvious lie. Though he'd rather not start an argument with you out of all people.

"If you really want to, I could get us something from 'The Francois'." He suggested, stopping you from your… activity. Somehow, his suggestion earned him a frown from you. Why the sour face, though?

"You mean, get him something?"

"Yeah. Same thing." He waved you off, pulling his legs from underneath your weight. He then proceeded to wear a jacket and throw one of his own at your face. "Get up."

Without much thought, you slide into the hoodie and pull the hood to cover your head. Senku hummed as he inspected your fit. It's giving cringe, but he won't say it out loud. With that, the two of you made your way out of the house to the nearby convenience store, The Francois. The infamous shop owned by the Nanami Corporation that somehow has everything one would wish for, including cakes.

He led the way into the pastry section and handed over his card to you. Well, his dad's card, technically.

"Don't you at least want to use your own money for his gift?" You asked as you held the card between your fingers.

Senku shook his head, and an amused scoff left his lips at the idea. Growing up, you were the one who always came to their house to ask for money from Byakuya, knowing how rich he is; so, your suggestion just now contradicts everything you've done so far.

"Says you. Just go and buy him something."

You rolled your eyes and went to the counter to pick some cakes for yourself and Byakuya. Senku wasn't wrong; Byakuya has been spoiling him AND you for as long as you could remember. So, using his money feels like second nature by now.

"I'll have a slice of Chocolate Indulgence, two slices of Burnt Cheesecake…" You ordered, eyes shifting between the rows of cakes. "… Lotus Biscoff Cheese and Chocolat Au Lait, both two slices; packed, and could you write a wish on it?"

The baker nodded and did your orders. After a few minutes, he turned to you, waiting for the wishes you wanted on the cake. You thought about it for a while. Senku would not want the message to be too cheesy, even though that would bring the brightest smile to his old man's face. He's way too nonchalant for his extremely expressive father.

"Do you're old, B—"

"Oh, it's good to see you here! Self-reward for the week?"

Suddenly, Byakuya popped out of nowhere and patted your head. You froze on the spot. The man looked at your stunned face and tilted his head in confusion. But then, he saw his card in your hand, nodding his head in understanding. Oh…

"You're on a date with Senku?" He whispered in your ear, not wanting to possibly embarrass you in front of the other customers.

You almost visibly cringed at his question. A date? With Senku out of all the singles in your Uni? Hell no. You faced him slowly, showing a bright, forced smile.

"Pfff, no way. We're just… snacking, yeah." You laughed half-heartedly.

Byakuya nodded his head, not really questioning your suspicious behaviour. He glanced at the number of cakes you've ordered. He thought the amount was funny. That was, until he noticed a cake with a "You're Old, Bitch" wish written on it.

"Is that for—"

"Senku! Of course! Yes, him." You cut him off. "Senku's been… craving cakes. Maybe it's his hormones changing for being old. Hahaha, isn't that funny?"

"Is that why he's been staring at us for the past three minutes?"

From the table, Senku sighed in defeat. Nothing escapes Byakuya, especially birthdays. How do you think Byakuya always celebrate two birthdays for Senku? One for his birth date, and one for when the old man adopted him. What makes you think it's not hellish suspicious of him to be in the pastry section, ESPECIALLY on Byakuya's birthday, out of all day?

"Awhh!! Senku! You're the sweetest son EVER!" He ran to his son in excitement, but accidentally knocked over a chair's leg and stumbled into a random person, taking him down with him. It turned chaotic within seconds as the person he faced, flat to the ground, turned out to be someone important.

After some police-presence discussion, the ride home was… somewhat normal, thankfully. Byakuya was very happy to discover Senku's presence in the bakery. He had wished for this day during his previous birthday, and it came true! He finally had one birthday where he would not be blowing out candles alone in the kitchen.

In the end, the three of you take turns blowing candles on the cakes at home, for the second time. The first time was at the bakery after the police left, when he sneezed onto the cake as he wept in happiness. You hoped he wouldn't be doing the same thing he did previously. If one might be wondering, why would other people also blow out candles when it's not their birthdays? Because Byakuya wanted you two to, other than that, no, there's no other reason.

"I love you both so, so much!" He wailed as he wiped his mouth. Senku pushed his face away from rubbing his stub on his temple. That thing was hella spiky, and it was freaking itchy.

"Don't get too excited, old man, or you'll be puking everything." Senku reminded him, not wanting to deal with another… similar accident. What happened at the bakery was more than enough.

Byakuya laughed heartily and finished up his cake. The three of you then began cleaning the kitchen. It's already late, but the sun has yet to set. Though Byakuya still insist that you stay at their house. There was no reason to deny his invitation. Besides, staying for the night means you could reduce you electril and water bill by one day.

Now, you were left alone with Senku in his room.

"Looks like you were having fun." He commented as he sat on the bed.

"Define fun. But maybe you were right. It is fun. I feel like a spoiled kid who blows other people's candles." You puffed your chest, hitting it with your palm proudly. Not every day does someone let others blow their cake. Byakuya had just provided you with that rare experience. That just made you treasure the old man even more.

"Do you like blowing that much?" Senku raised his eyebrows at you, a smirk on his face.

You imagined the faces of crying children as you blew out their birthday candles. It's evil, but imagine the satisfaction. "Oh, definitely."

But then something clicked inside your head as you translated the devilish smile on his face. Ew fuck, no. He means it in a dirty way.

"Senku, what the hell?"

"I'm not saying anything; it was your own interpretation."

© asuna-luino 2026

masterlist

taglist: @verysanesenkufan @alxzisss @sugarbynn @cruelsecrettreasure

[asuna-luino]

Flawed Trial

ⵌ summary: When they say it's hard to move on from an ex, Senku never thought it would be THIS hard. Now he wants to fix everything, yet his scientific mind couldn't fathom the idea of just apologising without anything planned. So he concocted a libido enhancer as a backup plan! Surely nothing bad will happen, right?

ⵌ pairing: senku ishigami x reader ⵌ wc: 2.6k

ⵌ note: it's a bit suggestive, thanks to the elixir (but nothing too explicit). it made senku extra horny + divider cr: @uzmacchiato + masterlist

"So you're saying, you want me to be your test subject?"

Sitting across from you is none other than your ex-boyfriend, Senku Ishigami. One might be wondering, why the heck would someone so perfect be an ex?! Well, things happen in the past, and you would rather not talk about it anymore, so does he. What matters is that you two are friends again! Kind of.

"Definitely. Plus, it's not like you could refuse. I still have two wishes left, in case you've forgotten." He countered, leaning against the lab table. Curse that silly Genie Lamp game crap.

You sighed softly, dragging your palms over your face. Is he serious? That stupid game was months ago! He even said he's not a little boy to be playing such a… such a childish game! You turned to him, brows raised.

"What is it that you need me to do, Ishigami?" You extended your arm without bothering to look at his face. Because of that, you failed to see the frown on his face at the way you addressed him so formally, as if you two had never had anything before. But then again, the breakup was weeks ago, and he may be at fault for not moving on as you did.

He shook his head to push those thoughts away. Let's not dwell on the past, especially now.

"I'm concocting a libido enhancer."

A what?

"Libido… enhancer?" You repeated, unsure if you heard him clearly, the first time. Did he miss seeing you squirming like a cat in heat or something? What could be the reason for him to go as far as calling you to be his experiment rat for this kind of test?

"Don't think too much; it's for Yuzuriha. She requested it." What bullshit. He knows it's wrong to use the woman's name for his own selfish reasons. But hey, she herself was sad to hear about the breakup. This little trial he prepared is to uh… bring you… back into… his life, somehow? Surely both Yuzuriha and Taiju would understand, right?

"Sure…" You mumble, not believing it. As if the girl would even think about using such a disgraceful cheat code on her man. Ishigami probably had things in mind when he personally wrote you an email to invite you here after you blocked his number and socials.

Shrugged, you take the test tube from his hand. Twirling the fluid in a circle. Then you glance at him, seeing that almost nervous gulp visible on his neck, as if swallowing a lump. How suspicious…

As you're about to tip the tube into your mouth, his phone rings in his pocket. You glanced at him, then at his vibrating lab coat, then at him, again.

"Aren't you going to answer it?"

"That's probably my old man. He could wait."

"And so can you. Answer it."

Sighing in retaliation, he turned around to answer the call. Once you've made sure he's out of eyeshot, you look around the lab in search of his bag. Thankfully, you found it, his bag, AND his water bottle. Jackpot!

Quickly, you pour the whole thing into the bottle and shake it a little before placing it back where it belongs. Then you stride back to your seat, acting as if nothing had happened. After a few minutes of silence, Senku returned to the lab, muttering something under his breath.

"So, how was it?" You asked, using the test tube as a pointer.

"My old man won't be home tonight. He's just letting me know beforehand." He rubs his hair, thinking of what to eat later, now that he knows Byakuya won't be home for a few days. It'd be troublesome if he had to rely on instant food only to find out they ran out of stock.

"He's one thoughtful father. Sadly, the variant is absent from the germline."

Somehow, your mindless comment struck him. Of course, you just need to bring that up. One of the reasons for you two to fall apart. His hand subconsciously went to his ear to rub that specific spot that aids in calming down.

"Anywho, you drank everything?" He asked, changing to the main topic.

You wiggle the empty tube between your fingers. "It's tasty. You should make this more often. Maybe even mass produce it." You encourage, sarcastically, before setting the apparatus to its rightful place on the table.

Senku hummed quietly as he glanced at his watch. The effect of the substance should take place within 10 minutes. Then he turned his eyes to you, brows quirked.

"Is that so?" He tapped his temple with his index and middle fingers, lost in thought. He could clearly see the sarcasm leaking through your facade, but he'll let it slide. It's not like you're going to listen if he argues with you about it. "Anyhow…"

"It's past 6 pm, and no student is allowed to stay in the faculty building. Go to your dormitory or home, kids. Tsk, younglings these days." Suddenly, a security guard came knocking at the lab door. The old man didn't wait for a reply and just continued his stroll while puffing smoke into the air.

Senku turned to look at you. Then he took the apparatus and kept it in the cabinets after washing them. He wiped his hand with a handkerchief and slung his bag over his shoulder, though, not without taking a sip from his water bottle.

"Do you want to go to the library to record the effect of the concoction?" You suggested as soon as he caps the bottle. He gulped down the water, nodding at your suggestions without saying a word.

With that, the two of you made your way out of the laboratory and went to the library instead. The walk wasn't very far, but it's not very close either. Thanks to this big ahh university. You walked up the stairs ahead of him, but when you reached the top, you turned around to find him standing at the bottom of the stairs, hands on his head.

"You good, Ishigami?" You called, unsure if you should approach him or stay put where you're at. After weighing the pros and cons, you sighed, set down your bag and went to him. Since he was looking down, you couldn't get a good look at his face. So, you crouch next to his legs to peek at his face.

What the helly.

He's… he's… he's red. Like, blush, flush, crush, red. Could this be the elixir's effect? Whoa, crazy. Thank goodness you didn't consume it, but it'd be evil of you to say he deserved it.

"Um, I think… we should head home." He breathes out, turning away from facing you. He grabbed his water bottle and poured the contents over his head. This isn't right. Why is he affected instead of you? He doesn't remember consuming the substance.

Was it when he made it? Could the vapour also work? If so, he had been consuming it for days! But why only today did the effect start? This doesn't make sense. Maybe he miscalculated? Oh shit, if he's already this… affected just by the vapour, what about you, who had drunk over 15mL of it? How strong would the side effect be?

"It's going to rain soon." You muttered, stopping him from whatever he was thinking. His brain was too occupied with his own thoughts to notice you two were already on your way home. He glanced at the sky, it's dark. Before long, a droplet fell on his nose.

He couldn't react properly when you suddenly grab his hand and tug him forward as you run. He heard you yelling something, or cursing at the sky, he doesn't know; when was the last time you two held hands? Maybe over 2 months ago? When did you stop looking for him? He can't remember the details, but if he recalls… he'd never been the one to look for you before. Is that why you want to end your relationship?

Because you were tired of him? Always have to be the one to give, while he only receives. Now that he thinks this thoroughly, he was being rather unfair to you. Focusing and spending most of his time on his experiment instead of on his partner. Did you feel unappreciated? Unseen? But he never missed any important date, so that should make up for the lost time, shouldn't it?

Yet it was never enough. He should've seen it, those signs. But now it was too late. If only he—

"Ha, thank goodness we got home before it starts pouring." You chuckled, taking off your shoes and keep it on the shelf. Then you walk through the hallway of your house, almost forgetting he's with you.

"Oh, you could stay in the living room while waiting for the rain to stop." You added before closing the door to your room. He could do whatever he wants, it's not like he'd never been here before. Besides, his status as a guest doesn't really apply in the house.

Senku took off his shoes and went to sit in the living room as you had instructed. The house is clean, always. It's not too warm, thanks to the pouring rain, but the substance he digested earlier made his body feel abnormally warm. He's grateful your brother isn't home, or he's going to tease the living shit out of him for the blush on his cheeks. When will the libido enhancer wear off anyway?

Shit, his body is getting uncomfortable. The fact that there is an obvious tent on his groin doesn't help. A quick rub wouldn't hurt, would it? Yeah, it'd be quick, surely. The elixir made sure of that.

As Senku sits down on the couch, he adjusts his position to lie down, resting his head on the armrest. His hand began its exploration, the not-so-friendly one. He tried to muffle his… voice with the back of his unused hand. He kept going, up and down, rubbing the wet tip, until—

"Ishigami, do you want some spare clothes? I called my brother, and he told me to let you borrow some." You called from the hallway.

His hand halted its movement, and he quickly wiped the stain on his hands with a tissue on the tea table. He buttoned his pants and pulled up the zip, sitting up properly. You popped from behind the couch and placed the spare clothes on his head.

"Go change." You commanded and left him, returning to your own room. He followed in your step and entered the room next to yours, your brother's. Your room and your brother's are connected by a bathroom.

He went in and showered. Now that he's alone… and the sound of pouring water could overpower his voice, he returned to what was left unfinished. No one could blame him, though! It's the stupid experiment's fault. Now, he's starting to worry about what will happen to you if the elixir takes effect.

He groaned as he fisted himself, releasing to the floor. He feels better now. Quickly, he finished up, wrapped his body with a clean towel and stepped out of the bathroom into the bedroom. He looked up from the floor, expecting to see a quiet, empty room of your brother's; only to see you on your bed, in nothing but a 1-piece sleep dress.

It was nothing explicit, really. The dress was rather modest, covering your top down to your knees, but he just knows you wear nothing underneath it. He always knows. Wait, hold on— what the? If you're in the room, that means he must've accidentally entered the wrong room. Muscle memory, perhaps.

"Uh, yeah. He's showering. Yeah," You were too engaged with your phone call with your brother to notice him approaching. "Pft, no way. We broke up months ago. No, no, we're not engaged in any R-rated activity, you perverted mentalist." You laughed, turning to your side on the bed.

As you shifted, the sight of the ceiling switched to a happy trail of white and green. Wow, how you missed this.

You quickly sit up, facing the half-naked man in your room. You laughed awkwardly at the situation. "Sen— uh, Ishigami?"

Suddenly, he grabbed your ankle and pulled you towards him; your knees hit his abdomen. Giving you no chance to react properly, he climbed onto the bed. You couldn't see his face with his hair down, but the subtle sign on his groin and the red tint on his ears are enough of a sign. Maybe it was a wrong idea to pour that libido-something into his drink.

"Ishigami," you called, though not pushing him away. "What are you doing?" A smirk made its way to your lips. That thing must have been very concentrated for it to affect even THE Senku Ishigami. Look at him getting all worked up, too bad that boyfriend privilege has ended.

"I'm sorry." He muttered. That caught you off guard.

What?

"I'm sorry… for everything." He repeated. He grips your sleeve, frustration evident in his quiet strength. "Forgive me, please…"

You blinked, unsure of how to react. Senku rarely, rarely apologise. Yet something drips from him, landing on your cheeks. He's crying. He's edged to tears thanks to the libido drug.

"…Please…" He let out a sobbed whimper. Sheesh, how could you be mad at this man when he apologises like this?

You shook your head, eyes drifting to anything but his bloodshot ones."Ishigami, you know how you are—"

"I'll change!" He cut you off. That startled you. More tears began to drop from his eyes as he clenched his teeth, holding back sobs from leaving his throat. "…I hate this." He muttered under his breath. He hated how the drug made him so darn sensitive.

"I want the old us. I'll be there for you, just… give me a chance to redo everything." He cried, head fallen onto your shoulder. His tears wet your dress. "Please."

Your hand rested on his head. Fingers slowly rub his scalp; that somehow calmed him down. You sighed softly. "Promise you'll put me before your experiments?"

He nodded his head vigorously, his hair tickling your ear. You smiled, adding more, "and to treat me to dessert every weekend?"

He hummed, rubbing his nose against your chin.

"And… at least three dates a month?"

You heard him mumble a breathy, "Now you're overdoing it… But, yes. I promise."

A contented huff escaped you before you planted a soft kiss on his eyelashes, the closest thing to your lips. Senku seems to understand the meaning behind it, and a big, drowsy smile spreads across his face.

This would be a romantic scene, if not for the hard bulge pressing against your pubic, as he unconsciously dry hump to you. Thanks, libido enhancer, you made him a pervert.

Out of nowhere, he bites your neck, leaving a crescent bruise that will surely be visible after a few hours. You wince at the pain. Then he lapped at the scarred tissue, wanting to soothe you in his own hornily drunken way. Yet as you two were going further, the door to your room slammed open with your brother shamelessly walking in.

"Oh my, dear Senku. Who would've thought you'd be the type to just ravage my sweet lil sis like a rabbit in heat?" Gen hummed, a teasing lilt obvious in his voice.

Senku quickly pull down your bunched-up dress to reach your knees, giving you a little bit of modesty you need. He then glared at your brother, who was shaking his head in mock disappointment.

"And here I thought you weren't engaged in any R-rated activity."

© asuna-luino 2026

Later, you told him about the elixir and he couldn’t live with second hand embarrassment lmao🤑 imagine fumbled so bad in front of fine shyt and only realise your mistake when they point it out

masterlist

taglist: @verysanesenkufan @alxzisss @sugarbynn

[asuna-luino]

Nonsensical Envisage?

ⵌ summary: Senku was involved in a hit-and-run accident and has been living in his own mind for years. Yet, in his eyes, he is thriving and living a peaceful life with you, building and restoring humanity with his loved ones.

ⵌ pairing: senku ishigami x reader ⵌ wc: 2.8k

ⵌ note: tw: angst kinda + divider cr: @uzmacchiato + masterlist

It's been over a month since the accident. Your husband has been lying on the hospital bed, unmoving. You couldn't remember the last time you slept, let alone ate. How could this happen to you? Why him? Worst, the doctor said he might suffer from memory loss.

"He wouldn't want to see you like this." His father, your father-in-law, Byakuya, gently placed his hand on your shoulder. "And it's not healthy for both of you," he added.

That's right. You're pregnant with Senku's child, and the accident happened because of you. It was a miracle that you and the child were safe while he received all the damage. If only you didn't cling to his arm like a stupidly in love penguin as he drives, none of this would've happened. This is all your fault.

"I'm not hungry, Bya." You muttered, caressing your growing belly. The due date is coming closer, and you can't do this alone. Will you endure the pain by yourself? What if… You couldn't make it and left the child by themselves? Byakuya would surely step up as caretaker while Senku's out cold, but what kind of parent would want to purposely neglect their own children?

Byakuya sighed. There's no getting through you, he tried for days, and the outcome has always been the same. You would refuse to do anything but sit on a chair and watch him for hours and hours. It's a pitiful sight, really. He feels bad for both you and his son, the baby too. Being born while under this situation could put a lot more stress on someone.

"Then I'll go find something for you two." With that, he left the hospital room in search of food. He can't have you be too weak. He loves you as much as he loves Senku. If Senku wakes up and sees you as good as dead, the young man would probably be disappointed in him.

After the older man left, you were left alone in the hospital room, listening to the same beeping sound of the heart monitor; staring at him, it made you wonder what he could be thinking about in that comatose state. Would he be relieving all your memories together? Or was it just complete darkness? But then again, neither mattered. You just want him to wake up already.

Meanwhile, in Senku’s mind, he’s once again living as a teen, yet it's a whole different world he lives in. A world where humanity was destroyed by a green beam that petrified almost all intelligent beings, and he is the centre of everything. Not as the villain, but as the scientist who brought back the old world after such a catastrophic event.

"Hohoho, this old man's body may be writhing, but his enthusiasm remains the same. Say, Senku… what more invention do you want to build, now that the Medusa has been defeated?" Old man Kaseki laughed as he stroked his beard, feet thumping against the wooden seat rhythmically.

Senku glanced at the crowd around the research facility. Years had passed since he first woke up from the petrification. So many changes were brought, many lives were lost, yet many more were welcomed. How fast time flies; it almost feels like a long dream.

"For now, I think I'm gonna go and rest my legs." He answered, hands on his hips as he left the site and walked towards the woods nearby. He barely got any rest these days, being occupied with meetings and conferences; a day of rest would be great. Work-life balance is important, too.

He sat on a cliff facing the ocean, feet dangling. The wind blew gently against his skin as his bang brushed his cheeks. It's peaceful here. So quiet… somehow, the silence made him feel lonely. He doesn't understand why, but he feels like something is missing. Like a piece of himself that he doesn't even know ever existed.

"I like the quiet."

A random person came and sat next to him. He scooted further to give them some space. He looked up, and it was you. Uh… someone they probably just de-petrified. He doesn't think he'd seen you before, maybe he did? Not like it matters anyway. There will be waves of depetrification soon, so it's not like he needs to remember every single person they revive.

"Aren't you tired?" You asked him, hand reaching to tuck his hair behind his ear, but he backed away before you could touch him. He turned his head to continue gazing at the horizon.

"Of rebuilding humanity? Kind of, but you could say it's an ambition strong enough to withstand the pressure." He responded, sighing softly in content.

He heard you hum, and then it's quiet once again. Just him, the sea, and maybe you, too. Out of the blue, he felt a weight on his shoulder. You were leaning so closely to him, arms tangling with his own, as you rest you face under his jawline. This is awkward.

"I miss you."

Awkward, "Uh, sure. I think you meant, I missed you." He corrected you jokingly to reduce the tension. Any sane person wouldn't go around clinging to a stranger they just met, would they? You're weird. Not that he'd never seen anyone weirder than this.

"You sleep a lot." You murmured to his skin, as if reminiscing about something he could not… understand. "Aren't you tired of sleeping?"

What's with these questions? Gently, he pulled away from your embrace or whatever and stood up. He turned his back to you and waved you goodbye without bothering to look back. "Well, I gotta go now; can't let those people ruin the lab faculty in my absence."

You just sit there quietly, watching his figure disappear from the woods.

Days passed, and Senku realised he was starting to see you more often than not. Every morning, you would join Francois in helping to prepare everyone's breakfast; in the afternoon, you would somehow be found chatting with Sai in his section of the lab; in the evening, he saw you with Kohaku and Ruri, discussing some… matters; and at night, he saw you with Suika, dinner over a campfire.

It's almost suspicious how you're always… there. So he decided to approach Gen to ask him about this mysterious activity circling you. Strangely enough, the mentalist didn't give out any comments about this other than, "You're imagining too much, my dear Senku! Oho, don't tell me it's happening now?"

This teasing crap again. Senku ended the conversation right then and there and went into his private lab. Only to find you sitting on his lab table, vials of dangerous chemicals in your hands. How did you get in here without his special entry card?

"Okay, this is overdoing it. Do you need something from me, or what? You've been following me for days now. It's eerie." He stated, growing uncomfortable with your constant presence in his life. Don't tell him you're actually a ghost from a body they accidentally destroyed or something?

"Nothing. I just miss you." You smiled at him. He cringed at that. Hearing that twice doesn't make it any better.

"Do you need a therapist? I could ask Luna if she knows anyone." He suggested going to his table to start his experiment. There are lists of things he needs to get done before sunset. You didn't reply to his suggestion and continued to do your thing: staring at the glass dome over your head. His lab was built with easy access to stargazing; Senku loves astronomy after all.

He ignored your presence and started crossing lines on his checklist. More and more tasks were done, and he could go home and rest. Before he left, he gave you his card to make sure you lock it before leaving in case you want to continue your… activity, and remind you to return it before 9 tomorrow morning.

Just like that, his day is filled with pictures of you. In every blink of his eyes, he would see you standing or sitting somewhere. Whenever he accidentally fell asleep, you would be by his side, sitting on the table as you pat his back, lulling him. Every time it's lunch time, you would pop out of nowhere and join him. Here a you, there a you, everywhere a you, you.

Before he realises it, he's getting used to seeing your presence. Maybe even expecting to see you more than once a day. The fact that you wouldn't hesitate to just hug or touch him doesn't help either. He wondered where you gained that confidence from. It was as if you've known him more than he knows you, to ignore any sort of boundary he sets up.

Years passed, and uh… welcome home, Mrs Ishigami. He, himself, was surprised that he could get you to marry him. Well, you did say that you miss him more than a hundred times over these past 2 years. It's not like he minds it; he finds it rather cute that you would always cling to his arm like a penguin as he drives while murmuring about your day or whatever that crossed your mind at the time.

"This feels like a long dream." You said softly, hugging his arm. He nodded, a smirk adorning his face.

"Do you not have any more lines in your dialogue script, other than 'I miss you', 'Aren't you tired of sleeping?' or 'This feels like a long dream'?" He joked, pressing a kiss on your head as he drove. One hand on the steering wheel, while the other on your thigh as you clung to him.

"Then, how about—" you lean forward to look into his eyes, "I'm sorry."

He looked at you confusedly. What were you apologising for? He opened his mouth to say something, but then he heard loud honking, and he didn't have the chance to react properly when the truck hit your side of the vehicle, successfully murdering you within seconds. The car was totally wrecked, with only your arm clinging to his as your body… was nowhere to be seen in the wreckage.

Everything was happening so fast. One moment, he was with you, being all lovey-dovey, and now he's standing in front of your grave, a bouquet in hand. He placed it on the ground, where your crushed body lies resting.

Yet as he stepped away from the graveyard, he heard the sound of crying from a tree. Did someone leave a child here? He approached the voice, and true to his instinct, it was really a child. A newborn girl at that. How could someone be so cruel, leaving a newborn by herself?

He glanced around, in case the child's parent might be nearby. Seeing none, he picked her up, holding her close to his chest. She looks so tiny, so cute, so warm… so confused but sad.

Droplets of tears fall onto the baby's cheeks, stopping her cries. Why does she look so much like you? The resemblance was uncanny, it's almost scary. He wiped her tears and gently rocked her to sleep under the tree. After the baby quieted down, he sat down and rested his back against the tree trunk.

All this crying is making him sleepy. Just a little nap won't hurt, right? Maybe when he wakes up, all of this nightmare might turn out to be a long… long dream.

In the real world, the sound of the heart monitor filled the quiet hospital room. Accompanied by the soft rustling and groans of a baby, who was bundled in a blanket right next to Senku's leg, sleeping peacefully on his bed.

Senku blinked his eyelids open. His body feels so heavy, strangely heavy, as if he's been napping for months instead of a quick nap under the tree. He moved his fingers and accidentally grazed the top of the baby's head.

Oh, they must've brought her here, too. He thought.

He remained quiet as he stared at the ceiling. His head feels foggy and dazed. How long has passed since your death? Two days? Three? Who fed the baby while he was out cold?

"Sen… senku…?"

He heard Byakuya's voice calling his name. Wait, what? Byakuya? His eyes drifted to the man entering the room. This can't be real. Byakuya died millennia ago. This must be hallucinations. Five stages of grief happen to everyone after a great loss, after all.

He had overcome Byakuya's death over the past years of rebuilding humanity in his footsteps. He could handle this hallucination. But if it were you, he doesn't think he could handle it without breaking down into tears. Your passing is very recent, and he's still grieving.

"…" This gotta be a crazy dream. He breathed out, his voice not coming out, his comment only audible in his head.

Byakuya rushed to his side, careful not to startle him or cause any damage to his son's already weakened body. Tears flow like a river from his eyes, followed by never-ending snot. Senku would've grimaced at the sight, if not for his lack of awareness.

"Senku… you're finally awake. It's been 4 months, son!" Byakuya cried, blowing snot using the baby's saliva handkerchief. He hesitantly uses his hand to caress Senku's sunken cheek. "Your wife is outside, getting the baby's diaper. She'll return soon, so don't cry, okay?"

Cry? Senku wasn't crying. Or was he? He could hardly feel his body; worse, he couldn't speak his mind with his throat refusing to cooperate. And wife? What wife? His wife, you… died days ago. Did Byakuya's ghost come with yours, too? Also, what 4 months is he talking about? Then, he heard the sound of the door creaking as you entered the room.

"Bya, have you fed Asun—" Your question was cut short when you saw Byakuya sobbing, with Senku looking at you as if he's seeing a ghost. You almost dropped the juice box in your hand as you stood there, unmoving.

The tears that flow from seeing Byakuya turned into a breathless, choked sob. You're alive? Or is it really just his imagination? He can't tell which is real, which is not. Everything is happening way too fast.

"I miss you." You muttered as your shaky legs brought you closer to him, then you shook your head with a teary smile on your face, "No, I missed you."

Those simple 3 words clicked something in his mind. Those are one of the three sentences you always said to him, even the first thing you said when you met him during your first meeting.

"This feels like a dream." A whisper left your lips. That. Another one of those. The gear in his brain slowly moved, connecting two and two: 4 months, Byakuya is still alive, you are still alive, these same sentences…

Was he in a coma? And those adventures going to the moon and defeating Why-Man were all just a long, long dream? Earth was never petrified, and it's just his imagination all along? Then, does that mean those same sentences you keep uttering in his… Dr Stone world, were you actually talking to him while he's unconscious?

But then, why didn't he remember you in his imagination? Did he lose his memories before he fell into a coma? Is that why?

Senku was too indulged in his thinking world to see you holding the baby in your arms as you sat next to him. Oh, about the baby… is it his and yours, or did Byakuya find it under a tree somewhere? He wanted to ask, but no words could escape his lips.

"You should see our girl. She looks just like us." You hold the baby closer to him, but not too close to overwhelm him. Byakuya already did that part. You wouldn't dare to shove your face into his when he is in this state. Unlike a certain someone.

Senku's eyes slowly drift from your face to the bundle in your arms. You're right. She looks just like you two, but mostly you. He loved her. A weak smile deliberately formed on his face.

Senku has so many questions he wanted to ask, so many things he wanted to say, but for now, he would rather just enjoy himself in this quiet warmth (not so quiet with Byakuya still sobbing) with the people he loves. Whatever speculation about that mysterious world he lived in for thousands of years could be discussed later.

He just wants to enjoy his time with you, his wife, again. After all, you will always be the person he would fall in love with again. If not twice, maybe this would be the third time.

© asuna-luino 2026

Get it?! Because he fell in love, and forgot, then fell in love again (in Dr Stone world), and was ready to fall again because that dream world wasn't exactly a reality. (๑•᎑•๑)

masterlist

taglist: @verysanesenkufan @alxzisss @sugarbynn

[asuna-luino]

Ishigami's A Psychic?

ⵌ summary: Senku made a mind-reading machine to try and read your mind. Who knows the reason for such an invention? But he seems determined to get it to work. Perhaps you're the reason why.

ⵌ pairing: senku ishigami x reader ⵌ wc: 1.7k

ⵌ note: nyeah, my senku fixation has returned (thanks to those Artemis II edits) + divider cr: @uzmacchiato + masterlist

"So you're saying you could read minds with this… thing?"

You look at him, unbothered by whatever groundbreaking experimentation he had conducted. If you remember correctly, he's a scientist, not an engineer. So how the heck did he come up with such a thing?

But then again, those "electric buzz buzz dandelion hair experiments" use some engineering skills, too. Still, that doesn't excuse him from creating such a privacy-breaching machinery. That raises a question: how are you two friends again?

"That is correct. 10 billion per cent for you." He chuckles and goes to tinker with some buttons on the toy-like control remote. You sighed. At this rate, he'd surely go to the moon before his father. The old man has been in astronaut training for years now, yet he's still somewhere on Earth instead of up there. His son is literally pushing 20, and where's that promised moon stone, huh?

"Think of something." He urged as soon as the light from the machine attached to his head lit up. You sat in front of him and propped your chin on your palm, unamused.

"Okay, read my mind now." You muttered, tapping your index finger against the table. Senku closed his eyes as he adjusted the wave meter to get a good frequency of your brain, synchronising his own with yours.

"Try to think of a number." He encourages, eyes closed, brow furrowing in focus. If his calculation is correct, he should be able to hear your monologue in three… two… one…

"Senku… senku… senku…" He heard a small voice, like a whisper in his ear.

"Quiet, I think I hear something." A smile made its way to his lips. "This is exhila—" He opened his eyes to break the news to you. Only to see your face right in front of his, as you call out his name in a whisper in his ears. So, you were fucking with him. He shoved your head away from breathing in his face.

"So? How did it go? What number was I thinking?" You asked, but it feels more like you were trying to rage-bait him with your question. You returned to your seat with a mischievous smirk on your face. This is fun.

Instead of answering your attempt to get a reaction out of him, he shifted his attention to his experiment. There has to be something he had miscalculated for it not to work, but oh well, a mind-reading machine is a crazy invention itself. Trying to get it to work on the first try is basically Mission Impossible.

Plus, it's a trial-and-error work. There's no guarantee he could actually get a wonderful result out of this trial. Still, so much time was wasted, and he couldn't simply give up just after one failed test. Yet, if he were too eager to try to read your mind, wouldn't it be too suspicious of him?

"Maybe you wear the thing wrong? Let me adjust it." Your hand quickly reached for the pad on his temples. But out of nowhere, he grabbed your hand before you could get too close to it. Your comment made him realise: what if he placed the resonators wrongly?

"I have an idea. Come here." He gasped, quickly plucking one of the two wired band-aid machines from his temple and stamped it to yours. He calibrates the frequency again and…

— Uh… bzzt— hm—

"Think of something, quick!" He commanded in a rush as his eyes continued to read the data on the computer screen while his hands hovered over the keyboard and the control remote.

How much wood would a woodchuck chuck if a woodchuck could chuck wood?

"…" He stared at your face, unblinking. Whether it was from this discovery or something else entirely, you don't know.

Dang, look at that face. Full of disappointment.

"Mudsliging me, huh?" He chuckled, earning an excited yet confused look from you.

"Sounds like it's working." You nudge his shoulder, giving yourself a back pat for your bright idea. Technically, it's not entirely yours, but who cares?

Now, how do I keep my head empty? Do I think of something funny and keep it SFW? Wait, hold on a second. How come I'm not hearing anything?

"That's because you're attached to the positive terminal of the machine. That means I'm the only one receiving the wave generated by your brain, silly." He explained, though not without calling you dumb names. How Senku-like of him.

Tsk, so unfair. Just when I thought I could finally know what's going on inside that big brain of his.

"Stop moping. Let's start with our first test." He ignored your monologue-wailing and began prepping papers to collect data from you. "Think of a fruit."

You sit down, facing him, knees to knees. You imagine a fruit on a plate, light yellow, with some green parts. Not fully ripe. Long and… a banana! You smiled to yourself, proud of the image formed in your head.

"That looked like a banana." You heard him mutter.

"You could see brain images, too?" This experiment is truly something else. Who would have thought Senku could be a psychic like that pink-haired guy from an anime called Saik—

"Now imagine what you would do with it." He interrupted your thought.

What would I do with a banana? Eat it, of course.

"Then do it." He replied to your thought.

Following his order, you quietly imagined yourself lying down in bed, reading some smut while eating a banana. A wonderful scenery indeed. As you eat, you cringe as the reader in the smutshot said something cringeworthy, almost choking on your fruit.

This feels like watching those alpha CEO x y/n fic on Tumblr. But hell yeah, those explicit scenes were mad detailed. From the way their skin glistened to the way he manhandled the reader. Peak fiction, for real. If only it were you and Sen—

"I would suggest you keep it PG-13. We may no longer be minors, but I'd rather not write intercourse mind tape as my first mind-image reading." Fuck, you completely forgot about him.

"I wasn't thinking of anything inappropriate, you accuser." You tried to defend yourself. Though it works like hiding a candy under your tongue for a dentist visit. Worthless.

"Yes, definitely." He shook his head and turned around to write down the first part of the reading. After a moment, he glanced at you. "About the last part…"

"Of the smut? Wow, Senku. So shameless of you to be asking a lady such a question." A mocking smile made its way to your face while his scrunch in disgust. Haa… teasing this man has never been more satisfying. That makes you realise, how the heck did you two become friends again?

It was last winter, you were out at the park, watching over some kids you babysat. You taught them how to make a snowman, and they made a big ahh wiener out of it and proudly presented it to you. And instead of being mad at them, you praised their artwork and snapped a picture of it. At the same time, the almighty Senku was on his way home after a hangout at Taiju's house.

He heard you chatting with the kids about your dream man who could read minds, so that you don't have to tell them what to do during intercourse. You were giggling to yourself like a pervert as the kids watched, wondering what inter…course means. Well, big people stuff, rents and craps, whatever. That piques his interest in building a mind-reading machine.

It's not like he started with building this machine so he could read your mind as you two did the deed, but more towards the idea of being able to understand someone's deepest unsaid words. It's quite poetic in its own scientific way, if he thinks about it.

With that objective in mind, he approached you, and that was how you two became friends. He never mentioned anything about building the machine after hearing your perverted vision; instead, he keeps you by his side as someone who would somehow light up his world, even when you came from nowhere. How did your position in his life change so much within a short time?

"And she ended up with triplets." You finished your summary of the fic of your imagination. An embarrassed look on your face turned into a fluster. Wow, hearing smutfic made him smile that much? Who would have thought that he could blush? It couldn't be the experiment, could it?

"If you're smiling this much, I believe that means this experiment is a success?" You lean forward to gain his attention. How long has he zoned out, you wonder.

"It is. But there'll be more experiments yet to come." He set the pen down and turned to face you. "Hope you're willing to be my test subject."

You rolled your eyes at his playful commentary, "I agreed to it months ago. Plus, you promised to treat me to something pricey after every lab-rat experience. I hope you have your wallet filled with cash?"

Without shame, he pulls out Byakuya's card… :|

As long as it has money, you're never going to question how he persuaded his dad for such an exchange. After that, he concluded the day's experiment and took the band-aid-like machine from your temple, disconnecting his mind from yours. Somehow, that made him feel incomplete.

"We should try this new Takoyaki stall near the airport. I heard they made a big sale in their first week. We definitely need to check it out." You took out your phone and showed him the location. After receiving a nod from him, you skipped out of the lab.

Meanwhile, Senku quietly watch as you leave him behind for food. He hummed to himself before joining you from behind after he made sure every apparatus had been cleaned. As he walks behind you, he wonders:

Say that he could have your hand in marriage, would he be able to fulfil your… fantasy? After all, you were the reason he built this mind-reading machine, anyway. It'd be a waste if he were to let you go just like that. He called out to you. "Stop skipping. You'll fall."

"You'll be the one to fall first!" You shouted from almost 50 meters away from him.

You were right, but I have long fallen.

© asuna-luino 2026 masterlist

taglist: @verysanesenkufan @alxzisss @sugarbynn

[asuna-luino]

First Date Failed Successfully! Kinda?

ⵌ summary: he finally has the courage to ask you out on a date! what could possibly go wrong? better yet, anything could possibly go right!

ⵌ pairing: alto surebrec x reader ⵌ wc: 1.4k

ⵌ notes: returning after months of hiatus. also, the second i saw him in that one panel, i just knew he'd be my new favourite. dead or alive. + divider cr: @uzmacchiato

You both have known each other since your teenage years, and he was known to hold a massive, obvious crush on you. What better way to court you than to ask you to be his valentine?! Though it’s not even the right month, he’s being extra prepared, so you gotta give him credit for it.

Early in the morning, he came knocking at your door, dressed in his most presentable outfit. You’re surprised he even bothered to do his hair, or maybe you’re too used to seeing it messy. Yet with a clear view of his face, you finally get to see those blushes coating his cheeks. Wow, he’s making you think about your future children already.

“So, um— Ready to head out?” He stuttered and cringed internally. He had practised his lines multiple times, but his tongue still betrayed him. You hummed thoughtfully, pretending to give it some thought just to mess with him. Seeing him shifting his weight from one foot to the other, you smiled and took his arm in yours.

As soon as you’re by his side, a big, grateful smile painted his face; you had clearly given him a tiny heart attack with your nonverbal teasing earlier. It’s alright, that’s why he loves you. Seeing you being comfortable with him makes him wonder if it’s the right time to court you. Wait— going on a date technically means courting, right? Those books didn’t lie to his face, did they? He sure hopes they didn’t.

After a quick walk, you both arrived at a small bird cafe. They have doves flying in the building, shitting here and there. That’s not very hygienic, is it? Well, it’s too late now cause he had already booked a slot for you two. Throughout the breakfast session, he would talk about his hobbies, and you would tell him yours. You were so engrossed in the yapping that you failed to realise he had held your hand on the table.

“Uh oh! Sorry.” He stammered. Yet instead of letting go of your hand, he gripped it further. Eyes wandering everywhere but to yours. This silly man. You chuckled under your breath and squeezed his hand gently, letting him know that you’re not mad about it. Well, it’s not like he’s planning to let go, anyway.

Not long after, the waitress arrived with your food. You don’t remember ordering anything, so he had probably set things up beforehand. He thanked the waitress and slide your dessert closer to you. “I hope you like strawberry crepe cake. I’m not sure what to order since it’s my first time here, too.”

You look at the deliciously tempting dessert, yummy! You pulled your hand to grab the spoon, only to realise that he still has yet to let go of your hand. You glance at it, then at him. He had that deep blush on his face again, which could only mean one thing.

“May I… feed you?”

Wow. He’s quite bold for someone so gentle and kind. You’re not against it, of course. You two have been feeding each other for years, and just because you two aren’t teenagers anymore, it doesn’t mean you would refuse such a generous act from him.

Your long monologue causes him to get the wrong idea. Hesitantly, he let go of your hand and reached for his own spoon. “I shouldn’t be too forceful, my apologies. Let’s eat, alright?”

Then the two of you eat in silence. An awkward silence, mind you. This is making you uncomfortable, and he knows it; yet he couldn’t do anything to fix it. He’s too nervous for god’s sake! What if he already fumbled this date? Is his fate sealed to being single? Even worse, what if you actually had a partner and only see him as a best friend?!

Being too occupied with his thought, he almost gasp when he felt your finger on his lips. You told him he got some cream on his cheek, and he thanked you. But then, you did the unexpected and licked the cream off your finger! The same cream that was on his body! Well, his cheek, but the same thing.

To say he was beyond petrified would be an understatement. You could almost see him turn stone still, mouth agape. Who would have thought the mischievous Alto Surebrec could have his heart taken so… so… damningly? Catching himself, he covers his face to stop the happy grin from ruining his face. His smile is something most people don’t like, saying how scary it looks. Does he really look that bad?

A cough from you is all it takes for him to abruptly stand up and bang his head on the table. “Would you—!”

You blink, second-hand embarrassment beginning to creep in; not only has he gained your complete surprise, but he also managed to turn all eyes in the cafe on you two. How mortifying, perhaps it was a mistake to—

“—Be my valentine and my lifelong partner?!”

What. Now, it was your turn to be stunned. You would’ve said yes without a doubt, but why does he need to do all these gestures? It’s like he’s begging you to be with him! Besides, Valentine's Day was months ago. There’s a saying that says you’ll be a new you when you’re in love, yet isn’t this overdoing it?

You sighed softly and excused yourselves from the cafe. Though not without reminding a nearby waitress that you two will be coming back soon. The desserts were not even halfway eaten; it’d be a great waste to leave them unfinished.

After securing a place where there aren’t many people walking past, you turned to him. He’s fidgeting, face flooded with shame. You’re about to say something when he opens his mouth.

“I’m sorry. I shouldn’t have done that. It’s very… impulsive of me. Sorry.” He muttered, not letting go of your hand, as his eyes were glued to the ground. Was he wrong to assume you two shared and harboured the same feelings towards one another? Or was he being delusional all this time? If it is, then… man, that was embarrassing.

Your silence made him look up. Only to be greeted with a soft kiss to his nose. Dang it! He should’ve raised his head earlier! Missed opportunity, really. “You missed.” His mouth works faster than his brain can register his own words. Soon, he stumbled backwards and clasped both hands to his mouth to stop himself from further self-humiliation.

You laughed lightly at his reaction, wiping drops of tears from your eyes. He’s so cute. “I’d be happy.”

“Huh?” He let out a confused sound. Completely forgetting his earlier proposal. You raised your hand and showed him a small red heart-shaped box in your palm. Oh shoot—! Your ring! He panicked and patted his pocket, realising you must’ve taken the box while he was too absorbed in his thoughts.

“Well?” You raise your eyebrows, waiting for him to do something while he’s cornered. Hesitantly, he took the box from your palm and got down on one knee. He takes a deep breath and looks you deep in the eyes.

“I know I messed up earlier, but let’s pretend it never happened.” He begins, earning a giggle from you. “You’ve been my friends through thick and thin, and I realised how much I treasured our moments and struggles together. I do hope we could continue to create more memories, just us two, maybe even more.”

He smiled, that scary, weird smile again, “I truly love you. Will you… allow me to marry you?” What is that wording, but you love him either way.

You nodded your head and hugged him tightly as he spun you around, almost dropping you in the process. Too excited, maybe. Then, he sets you down and takes out the small ring from the box. Shakily, he slid it around your finger. It fits perfectly. How does he know your finger size, you wonder.

Looking into your eyes as he holds your hands, he proceeds to plant soft kisses on your hands. Then moving to your cheeks, nose, temple and so on. He’s been wanting to pepper you with kisses and finally! He’s got to do it! This might be the best date in his life, not like he ever had any before. He hoped that when you two are married and are blessed with an offspring, they will be exactly like you.

Only time will tell.

© asuna-luino 2026

[asuna-luino]

Beyond - (Senku x Alien!reader) 10

ᯓ★ 825 words part 10

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Previous: Our alien is jealous of Kohaku. They started having negative thoughts and questioning their existence. Would they ever be something more than just a test subject?

Yo gang. The last part was boring, time for some conversation. Bring Stanyey in

The question never left the alien's mouth. It's not like they wouldn't, rather, couldn't. The water around them continued to tremble faintly, disturbed by the pulse of their fins as the glow beneath their skin faltered. Emotions are overwhelming.

Then, for the first time in forever, the alien cried.

Not the way humans did, though. Why? Because they'll never be one. There was no trembling breath, no sobs or snots that tore through the silence, nothing. An alien's cry was quieter, sadder in its restraint.

The liquid shimmered around their eyes, suspended in the water like beads of light before slowly falling, one by one. Where each tear met the surface, it crystallised into soft luminescent pearls, sinking gently to the bottom of the tank, like how the feeling sank in the alien's heart.

Their people would have called it "shedding light". It was something that happened only under the pressure of immense resonance or emotion too strong for containment. A rare phenomenon in the eyes, but deep down, it is actually a weakness.

At that realisation, the glow around their body dulled completely, replaced by the faintest glimmer from the pearl that lined the bottom of the tank. Those are proofs of something they were never meant to feel.

They drifted lower until their hand touched the glass floor, their fingers brushing one of the fallen pearls. It was cool to the touch, weightless and empty, much like the emotion that had birthed it. Corny ahh

For a long time, they simply stayed like that. As the last pearl finally settled beside them, the alien closed their eyes in quiet resignation to the truth that... love, like light, was something they could only mimic, never truly hold.

Stanley Snyder wasn't exactly the type to tiptoe into a room. No, quite the opposite, actually, but that doesn't mean he's the loud type like Taiju. Even so, he moved a little slower that morning as the weight of responsibility hung off his shoulder like a heavy vest.

I mean, feeding the alien wasn't a hard job, but it wasn't something he took lightly either. Senku and Xeno's pet project was delicate and unpredictable. They said that it was something worth more than all their lives combined if you were ever bothered enough to listen to their scientistic rambles about "once-in-a-millenia biological goldmines" mimimimi bullsit.

So, fine. Stanley would stay and babysit the little glowing fish-thing for a day. Yup, no problem, easy work.

He pushed open the lab door with his usual no-nonsense stride, expecting the soft hum of machines and the flicker of bioluminescent blues greeting him from across the room. As he entered, the lights kicked on overhead, a sterile white sweeping across the consoles, metal counters and storage racks.

Everything looked the same as always. That's a good sign.

Except something was wrong. Something was totally wrong. He could feel it even before his mind could understand it. It was... a kind of stillness that didn't belong.

"Morning, fish. You still sleeping?"

No answer. Well, not like the alien ever been verbal with him or anyone in particular. Stanley frowned, his jaw tightening as he walked towards the tank in the centre of the room. He reached for the tray of shrimp pallets on the side counter, glancing up almost lazily before he froze mid-motion.

The tank was actually empty. Completely, utterly empty, bro.

"Oh, you've gotta be shitting me."

Stanley set the tray down carefully, yet his expression hardened as all his military instinct kicking in at once. He began move swiftly, checking the parameter, assessing the scene, looking for forced entry, clues and so on.

Unfortunately, as he circled the tank, something else tugged at him too, one that was annoyingly close to worry. He knew the alien weren't reckless, nor were they destructive. He was sure as hell that they also aren't the type to break containment or throw a tantrum like some of the scientists joked.

That damned thing literally spent half of its life floating around like a sunfish. How could they possibly have the strength to pry off the lid, or even have the speed to slip through the filtration vents? Something must have happened here.

Stanley leaned closer, bracing one hand on the tank rim. That's when he saw them... the tiny spheres scattered along the bottom like spilt beads. Pale shimmering pearls that have absolutely no part of any biological waste that Senku had ever mentioned. He narrowed his eyes as tension knotted the lines of his pretty face.

If he thinks about it rationally, the water around them is still crystal clear and untouched. No signs of a struggle either. Not to mention that there are no cracks or whatsoever in the glass.

So the alien hadn't been taken by force, meaning it had left on its own.

"I'm not playing this runaway bride game of yours, fish."

@ asuna-luino all rights reserved do not steal or alter my works in any form.

ᯓ★Stanley is here to save the day!! ᕙ( •̀ ᗜ •́ )ᕗ Or not. Shorter than usual, sorry. I need to study for a test, but don't want to keep y'all waiting for too long. But uh, see you again in 2 weeks, hopefully.

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@verysanesenkufan @lovingyeet @abyssal-via @imsimping4life @ekiimori

[asuna-luino]

Beyond - (Senku x Alien!reader) 9

ᯓ★1085 words part 9

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Previous: Gen teases the alien about SenHaku, and they're not taking it well. I mean, I wouldn't either. ୧(๑•̀ᗝ•́)૭

It's been a year, gang. Sorry for the late wish, but Happy New Year.

They dreamed of it, or at least what their mind could recall. It was nothing much but the endless silver seas. It was so clear that it reflected the entire galaxy on its surface. A sublime, truly.

What deed does one need to commit to be born in such heaven?

It wasn't exactly a question anyone could answer. Even so, coral reefs continue to wave their twigs in harmony, dolphins wheezing around annoyingly and making a mess, anchovies swimming in groups before being swallowed whole by a large whale. Pity, but that's just how life is in this place, symbiosis.

What is the purpose of living? Survive, adapt and reproduce. What more do they need to do other than survive? There's nothing on this planet but water, everywhere. They don't cling to eachother nor do they reach out for comfort. No words ever spoken, no language ever formed, nothing. It was as if they only existed to function; what a boring life.

What sin does one need to commit to be free from such hell?

But Earth was... different. In essence and in substance. The longer they remained here, on this strange yet beautiful planet of soil and dirt, the more those memories dissolved. That supposed heaven now feels like nothing compared to this colourful, bright world. What was the name of their home planet again? Uh, don't remember, not like it matters.

Though the water here is a lot denser, the light warmer, and the people... louder, it was what made them different. Humans are emotional. They touched each other constantly, spoke even when silence would suffice, laughed for reasons that made zero sense...

Humans are very difficult to understand, yet they were drawn to it. To these differences, these abnormalities, these... you know, uniqueness. Yes, but, as they thought they'd grown used to it, maybe even comfortable, tonight, things shifted, and something fragile cracked within our alien's chest.

The image replayed in their mind: Kohaku bursting into the lab, sunlight clinging to her hair like molten gold; Senku's calm composure falting for just a second before his mouth twitching into a small, unguarded smile.

That beautiful sound of laughter, so bright, so... utterly human. Unlike the aliens. Well, it shouldn't have mattered; it wasn't even their concern. Aliens don't laugh, they don't even communicate. So what reason do they have to be... covetous?

Yet, it does. The scene keeps replaying again and again, until even the memory of the light burned. The aline's fins fluttered restlessly, disturbing the still water. The glow beneath their skin dimmed and flared as confusion began to scatter through their body like static.

What is this feeling? This tightness? This desperate pull towards something that logic couldn't define?

Senku wasn't theirs. That much was obvious. That much was very obvious. So what is it that this heart couldn't understand? He was an observer, a scientist whose interest in them was analytical, not personal. Every glance, touch, and word offered came from curiosity, not care. So why? Why did every time he looked at them, something inside the alien wanted to believe it meant more than just... that.

That was foolish, delusional even.

They knew it, they always knew. But the way he would linger by the tank after each experiment, the way his voice would soften even just a fraction when he talked to them, had built an illusion behind their eyes. A dangerous one at that.

"Rest easy, alright?"

"It seems your health is improving. That's a good sign."

"You're more active lately, I wonder why?"

"Francois records that your food intake increases whenever there's company. Interesting finding, no?"

"Have a good night, I'll come back again tomorrow morning."

"Be sure not to cause trouble while I'm gone, okay?"

Maybe it's easier to pretend that he cares; that he didn't just see data points and reading. Instead, see the alien as a living being. One with feeling and emotion...

Ah, but that would contradict their entire existence, would it not?

That illusion shattered like glass. Fracturing inside their tiny heart, as shards scattered and pierced their ribcage. Was this how humans felt? That ache, that yearning?

They hated it.

They envied it.

No wonder their kind didn't do this. No wonder they don't bond or cling whenever they encounter one another. This strange feeling... how could the humans live with it? Love was a concept and attachment was a flaw.

So why? Why did they care so deeply about the sound of Senku's voice when he talked to them, the warmth of his presence when he was close, and the faint creases between his brows when he focused on them?

They curled tighter into themselves, their light pulsing erratically, staining the glass walls in ripples of faint blue.

If humans showed affection through touch and closeness, then what they saw earlier, between Senku and Kohaku... was that what humans called mating?

The thought stabbed through them. No, it couldn't be. Senku was different. He's a detached and rational man. He wouldn't—

But he's also a human.

And humans have feelings.

Whether they wanted to believe it or not.

He is a scientist, and they're just a subject of his interest. Is it wrong of them to wish for him to see them as more than just that?

Their chest constricted painfully. Their body drifted lower, fins folding against their sides as though trying to hide from the feeling itself. They were foolish to think they were different. So foolish to believe that, even for a heartbeat, Senku might have seen them as more than an experiment. But that was all it ever was, all it would ever be.

And yet, the ache refused to fade. The image lingered, cruel and bright, carved deep into their mind. For the first time since arriving on Earth, they felt small. Yet it was not because of their size or form, but because they realised how separate they truly were.

No matter how much they adapted, how much they learned, they would never belong to this world, nor to him. Two beings from different roots, bound only by circumstance.

Their glow dimmed to a faint, trembling shimmer as they stared at the ceiling above the tank as if searching for the stars they once knew. If only they could speak, even just once.

They would ask him about the one thing that tormented them most:

"Is there a world where someone like me could ever mean something to someone like you?"

@ asuna-luino all rights reserved do not steal or alter my works in any form.

ᯓ★Ahhhh, sweet sweet misunderstanding. I mean, fish hug each other during mating, right? ψ(๑`꒳´๑)ψ Don't worry, Daddy Stanyey will save the day soon. He knows things. Trust.

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@verysanesenkufan @lovingyeet @abyssal-via @imsimping4life @ekiimori

[asuna-luino]

SWITCHED!

Prologue! A fic where Senku and the reader switched bodies!

! When the Lightning Fell

Previous ... Next

There are days when the air is heavy with prophecy. When the clouds gather not only water, but tension, as if the sky itself holds its breath. The earth waits beneath it, silent and trembling; not out of fear, but anticipation. The kind that hums beneath skin and bone, the way static hums before a storm. Beautifully.

This was such a day.

The research field stretched like a vast sheet of silver and green, wires strewn across the grass like veins, delicate instruments blinking beneath protective glass domes. A scaffold towered above it all — an experimental relay, the latest in a line of tests Senku Ishigami had been refining for months.

The goal: to measure atmospheric electricity and its interaction with neural frequency. High-level science that danced between theory and impossibility.

Senku stood at the base of the structure, wind catching the edge of his lab coat. He held a clipboard in one hand, his other buried in his pocket, lips curled in that usual calculating smirk. The clouds above, thick and bruised with impending thunder, didn't faze him. He welcomed them.

"Perfect timing," he muttered, eyes reflecting the flicker of distant lightning. "Voltage's gonna peak. Let's push it."

A few meters away, his colleague stood with arms crossed, hair swept by the same wind, but her expression was less amused. Where Senku saw perfect conditions, she saw omens.

"You're insane," she said, her voice firm but calm. "The electromagnetic field is already unstable. This setup barely holds under clear skies, and now you want to test it during a storm?"

"That's the point," Senku replied without even glancing at her. "High-resonance neural mapping under natural electric stress. The whole experiment hinges on that variable. Besides..." He finally turned, meeting her eyes with that irritating confidence. "You're here. I wouldn't risk it if I thought it'd kill us."

She narrowed her eyes. "Flattering. But your math doesn't account for chaos."

"No math accounts for chaos," Senku replied, brushing past her to adjust the input terminal. "But it anticipates it. That's the difference between failure and discovery."

She sighed, but she stayed. As always. Maybe it was stubbornness. Maybe it was the strange gravitational pull that came from standing beside a mind like his, a force of nature in a body of bone.

But she was no less of a force herself.

They had argued all morning. Theory versus intuition. Cold logic versus gut instinct. She challenged him not just with facts, but with the inconvenient truth that science alone didn’t rule the world; it merely tried to explain it.

And now here they were. The storm overhead crackled like a god preparing to speak.

Senku climbed the scaffolding, nimble and focused, adjusting the copper conductors. Below, his colleague monitored the readings on the portable terminal, eyes flicking through data streams that jittered and stuttered as the air thickened.

Thunder rolled, a low vibration that pressed against the chest like a hand.

"Readings are spiking," she called out. "You need to come down, now."

"Just a second— almost there—"

"Senku."

He paused. Not because she sounded afraid, but because she didn't. Her voice was sharp and unyielding. Showing him the kind of tone that carved through his certainty and made him wonder if, for once, she might be right.

But it was already too late.

The light changed — first imperceptibly, then all at once. A silvery hue bled into the clouds, a brief flash like the eye of something ancient opening above them. Static surged through the air like a sensation that crawled along skin like insects made of light.

And then it came.

A searing bolt, screaming from sky to earth: a direct strike, impossibly precise, so impossibly loud. Time folded; sound became light; and heat became silence. Consciousness unravelled like a tapestry torn by invisible hands.

And in that moment, something twisted.

Not flesh nor bone, but essence. Something within them shifted, crossed, merged, and diverged. Soon, a scream split the air, though neither would remember whose throat it belonged to.

The world returned slowly, like a film reel restarting with stuttering frames.

Rain began to fall, hesitant at first, then harder, a rhythmic drumming that brought the scent of ozone and damp earth. The storm had passed in its wake, but something remained: a sense of displacement, of threads severed and poorly reattached.

Senku's colleague stirred first.

Her body felt foreign — limbs too light, too long, too... wrong. Fingers twitching, legs struggling to coordinate. But worse was the sensation inside her skull, like her own thoughts were echoing through a cavern she didn’t recognise.

She pushed herself up and froze.

Pale fingers. The shape of her hands was larger than she remembered. Her voice, when she gasped, was not hers. It was deeper. Sharper.

"No..."

Across from her, another figure lay sprawled on the grass, unconscious. Familiar clothes. Familiar hair dampened by the rain.

Her body.

The horror hit in waves. She crawled to it — him — herself — and shook the shoulders with trembling hands. "Wake up," she hissed— "Senku — wake up!"

His eyelids fluttered. Groggily, he sat up, groaning. And then... froze.

His gaze darted to her. Then to his own hands. Then back again.

"What the hell..." His voice caught in his throat. Thin, and airy, unmistakably hers.

She staggered back. "It happened," she said. "It really happened."

"No," Senku said, but he was already reaching for the portable terminal, fingers fumbling awkwardly through code commands, mind moving faster than his borrowed body could follow. "No, no, no — this isn't possible—"

She knelt beside him, grabbing his arm. "Senku— stop."

His breath was ragged, his movements erratic. He couldn't stop looking at her — his body, his face, distorted by panic.

"This is— neurological dissonance. Temporary. Must be," he muttered. "Memory displacement. Haptic hallucination. There’s no scientific model where identity transfer—"

"There is now," y/n interrupted quietly. "Because it happened."

The silence that followed was unbearable. Thunder rumbled again in the distance, softer now. A reminder. A whisper.

Senku's face — her face — tilted toward the sky. And something shifted in his eyes. Not just fear or confusion, but wonder.

Wonder...

"Huh," he said finally, voice strangely calm. "Guess you were right about chaos."

She looked down at her — his — hands. "Yeah," she murmured. "But it looks like you're stuck with it."

The walk back to the facility was a silent one, broken only by the crunch of gravel beneath mismatched shoes and the slow dripping of rain from tangled leaves. The storm had passed, but its echo lingered in the sky. Thunder murmurs like distant voices arguing behind the clouds.

Senku, trapped in y/n's frame, walked with stiff precision, his gait subtly off. Too cautious, and maybe too calculated, too. His borrowed body moved differently than his own as his hips swayed slightly, his centre of gravity shifted forward, posture was more fluid than rigid.

y/n, wearing Senku's tall, lean form, moved with equally awkward grace. His longer legs carried her farther with each step, but his body was a vessel of constraint. Everything about him was efficient, but not built for ease. His shoulders resisted the way she carried tension. Even blinking felt alien — his eyes are way too sharp, keener, too attuned to light.

Neither said much until they reached the lab.

Senku reached for the door first, hesitated, then stepped aside. "After you," he said dryly, but not unkindly.

She paused. "Really?"

"It's still your soul in my body. Might as well respect the formality."

She raised an eyebrow, then stepped inside. The familiar scent of ozone and solder greeted her — electrical insulation, old books, faint notes of mineral oil. It felt like stepping into a cathedral dedicated to reason, except she now wore the robes of the high priest.

Senku shut the door behind them with a quiet thud, then immediately crossed the room, fingers flying over a terminal. "I need to scan our neurophysiological vitals. Something's got to give me a baseline. If we can isolate the inversion pattern—"

"Senku."

He paused.

She leaned against the counter, arms crossed in a way that didn't suit his body but felt instinctive. "It's been half an hour. Don't you think we should... I don't know... go home?"

Senku turned slowly. "Home?"

"Yeah. Your home, and mine." She gestured between them. "Which means...you're going to have to go to my apartment. And I have to go to yours."

Senku blinked. "Absolutely not."

"Well, we can't just sleep here."

"Why not?" he snapped, a little too fast. "It's a controlled environment. I've got all the tools I need here, and it's not like I'm planning to stay in your body long enough to need pyjamas."

Her eyes narrowed. "You really think you'll reverse this overnight?"

"I intend to."

"Well, I don't." She sighed and stood straighter. "Look, I get it. You're trying to rationalise this like it's some solvable equation, but even if it is, you're not going to fix it by refusing to breathe fresh air or pretending reality isn't inconvenient."

Senku glared, then looked away, jaw tight.

She softened. "Besides... there are people expecting us. Your father, my roommate, our colleagues. They'll notice something's off."

"...Right," he muttered, rubbing the bridge of his nose in a gesture that looked alien on her face. "Social variables. Damn it."

There was a pause. A long and heavy one.

"Alright," Senku said finally. "Let's just swap keys and keep conversation to a minimum."

She gave him a look. "Yeah, that'll go great when my roommate asks why I'm acting like an emotionally constipated android."

"And my dad will love it when you start offering emotional insights during dinner. 'He's being so expressive lately,' he'll say. 'How wonderful!'" His voice went high and mocking.

She smirked. "Guess we'll both be playing pretend."

They exchanged bags awkwardly: Senku gritting his teeth as he fumbled through her belongings, y/n grimacing as she rifled through his gadgets and layered notebooks. Their lives had always run parallel, but never intertwined this intimately. Not until now.

"You have way too many tools," she muttered.

"You have way too many lip balms," he replied flatly.

"Some of us care about hydration."

"And some of us care about solving the mysteries of the universe."

"And some of us care about not having cracked lips while solving them."

Senku rolled his — her — eyes. "Whatever. Let's just survive the night without getting each other arrested."

She gave him a sardonic salute. "Good luck, genius."

"You'll need it more than I will."

Outside, the world was soaked and glimmering. Wet streets reflect the haze of streetlights like liquid gold. As they went their separate ways, each with the other's burdens, each wearing a mask they did not choose, the city held its breath.

The storm had passed, but the true thunder had only just begun.

.☘︎ ݁˖⨾𓍢ִ໋

Thank you for being here!

ᕕ( ᐛ )ᕗ

ˋ°•*⁀➷ Character Cards

➷ Senku Ishigami

Role: The Mind Inhabited Body: y/n's Personality: Logical, sharp-witted, emotionally reserved.

Senku approaches everything with surgical precision and empirical calculation, but when trapped in someone else's body, he's forced to confront social nuance, unfamiliar emotional cues, and physical instincts that defy rationality.

Arc: From control to empathy. He learns there is a science to the soul, too.

➷ Y/N L/N (Soon will be Ishigami)

Role: The Soul Inhabited Body: Senku's Personality: Intuitive, emotionally perceptive, clever with a rebellious edge.

y/n has always danced on the line between instinct and intellect, but now, in Senku's body, must face the pressure of genius, constant scrutiny, and the isolating weight of expectation.

Arc: From instinct to insight. She learns the burdens Senku carries and what her own identity truly means.

Previous ... Next

Hi. Here I am making another fic when the previous ones aren't finished yet. Also, I got too bored and made character cards.

@ asuna-luino all rights reserved do not steal or alter my works in any form.

[asuna-luino]

SWITCHED!

A fic where Senku and the reader switched bodies!

! Symphony of Entangled Minds

... Next

In a world untouched by petrification, Senku Ishigami is a prodigy in the realm of experimental physics, leading cutting-edge research into electromagnetic resonance and cognitive mapping. y/n, a fiercely intelligent yet intuitively driven counterpart, often challenges his methods, working as a collaborator or rival depending on the day. Sometimes even an owl, an observer.

During a routine field experiment under volatile atmospheric conditions, a lightning strike hits the observation site. Both are rendered unconscious yet miraculously survive.

But survival comes with a price.

When they awaken, something is deeply, horrifyingly wrong: they have swapped bodies. What begins as chaos spirals into deeper confusion, identity crisis, and a struggle for equilibrium.

As Senku frantically searches for a scientific cause and cure — y/n navigates the burden of his intellectual legacy. Through misunderstandings, emotional tension, and reluctant cooperation, the two begin to see the world through each other's eyes in ways they never expected.

Yet beneath it all, the question lingers — was this really an accident of nature…?

Or is something far greater at play?

This story contains mature and emotionally intense themes that may not be suitable for all readers. Please proceed with care and kindness to yourself. The following elements are included throughout the narrative:

ˋ°•*⁀➷ Body Swap / Identity Crisis

ˋ°•*⁀➷ Gender Dysphoria & Emotional Displacement

ˋ°•*⁀➷ Non-consensual Touch / Attempted Sexual Assault (handled with sensitivity)

ˋ°•*⁀➷ Unplanned Pregnancy / Mpreg (Male Pregnancy due to body swap)

ˋ°•*⁀➷ Medical Trauma & Childbirth (including surgical detail & failed anesthesia)

ˋ°•*⁀➷ Emotional Turmoil / Mental Exhaustion / Angst

ˋ°•*⁀➷ Romantic Comedy Elements (Teasing, Flirtation, Slow Burn)

ˋ°•*⁀➷ Consensual Sexual Content (under the influence, emotionally charged)

ˋ°•*⁀➷ Light Gore / Medical Descriptions

ˋ°•*⁀➷ Complex Family Dynamics & Psychological Growth

This is a story that blends science fiction, drama, humor, and human vulnerability in equal measure. Please read at your own pace and take breaks when needed.

Your emotional safety matters most.

.☘︎ ݁˖⨾𓍢ִ໋

Thank you for being here!

ᕕ( ᐛ )ᕗ

... Next

Posting this here because why not? Heh. Also, I'm trying something new. Yeah, these coloured texts... are they hard to read?

@ asuna-luino all rights reserved do not steal or alter my works in any form.

[asuna-luino]

Beyond - (Senku x Alien!reader) 8

ᯓ★1562 words part 8

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Previous: Senku and Xeno were experimenting like usual until the senior scientist informed his mentee regarding Kohaku's exploration team's return. Soon enough, she burst through the door, shocking everyone present. Swift like a tigress, she hugged him, a platonic hug between allies, but our beloved alien seems to get the wrong idea. Heh. ψ(๑`꒳´๑)ψ I mean, fish 'hugs' each other during mating, right?

It's been so long that I could hardly remember what the plot is. Pardonne-moi.

The hum of the lab settled into its usual rhythm again: soft, mechanical, almost tranquil if not for the faint murmur of Senku's voice in the background. He and Kohaku were standing near the main console, deep in what could only be described as a one-sided discussion where Senku would explain something about mineral compositions and atmospheric filtration, and Kohaku nodded along, eyes slightly glazed in boredom. Gen, meanwhile, crouched beside the tank, arms resting lazily over his knees.

"Snack time, darling," he announced softly, shaking a small container of shrimp pellets before tossing them into the water.

The alien drifted closer, catching the pellets in slow, almost bored motions. They usually glowed faintly when eating as soft pulses of light shimmered through the water like a heartbeat, but today... uh, nothing. The glow stayed dim and almost nonexistent, which is weird. Very.

Gen tilted his head. He knew exactly what was going on, but it would be wiser to act oblivious, no? "Not hungry, or just feeling blue?"

The alien didn't bother to react to him. Not with expression, not even with light. Just methodical movements, robotic almost.

He sighed, leaning his chin into his hand. "You know, you're really killing the vibe today. Usually, you're all sparkly and glowing like a nightlight. What gives?"

Still nothing.

Gen's lips twitched into a small, mischievous smile. If words wouldn't draw a reaction, perhaps something else would. Hehe. He plucked one of the shrimp pellets from the container and, without much thought, popped it into his mouth.

Instant regret, bro.

He coughed lightly, wincing at the dry, salty crunch. "Ugh, eug, uwegh, uh yeah, that's definitely made for you, not me." He forced a grin, pretending otherwise. "Delicious. Truly gourmet. Maybe I'll open a restaurant for us. 'Alien Cuisine by Gen Asagiri.' Catchy, huh?"

The alien blinked at him once, slowly. What is wrong with this being they wondered. He took that as encouragement anyway.

"Anyhow," he continued conversationally. His tone was smooth, almost casual, "How's the food today? Not to your taste? Or maybe you're just... I dunno, distracted?" He gestured subtly toward Senku and Kohaku in the distance. "They do look cute together, don't they?"

No response. Wonderful.

He leaned closer to the tank, lowering his voice as if confiding a secret. "You know, a lot of people in the village think those two are going to end up together. Can't say I blame them. They've got chemistry. Haha, see what I did there?"

"I mean, a lioness and her lion. Works like king and queen, no? A perfect... perfect mate."

The alien's gaze flicked toward him, faint glow rippling once.

"Ah, so you are listening," Gen murmured, smile sharpening slightly. "I mean, you saw it, right? The way Senku's eyes lit up when Kohaku came in? Happens every time she shows up. Some say he's got a crush on her."

He tapped the tank lightly, eyes half-lidded but observant. "What do you think? Is she beautiful?"

The alien's expression didn't change much (not that it ever did), but something subtle shifted in their posture. Their fins drew closer to their body. The faint lines of light along their skin flickered, then dimmed further. They stopped eating completely, pellets drifting past them untouched.

Gen watched silently as the alien's eyes flicked between him and the pair across the room. Senku was still talking, gesturing absently with his pen, and Kohaku laughed at something he said. So brightly, cerefree, and so... utterly human.

The alien stared at them for a long while, motionless. Then, slowly, their gaze returned to Gen. Their eyes, those faintly luminous eyes, searched his face. Wordlessly questioning his actions, or rather, his words. What was he trying to gain from this?

Gen only smiled back, soft and unreadable. He didn't confirm anything, but didn't deny it either. Instead, he just sat there with that same amused calmness that never quite reached his eyes.

After a few seconds of silence, the alien finally turned away. They picked up one of the pellets, almost mechanically, and resumed eating. No glow returned this time. Only a quiet, dull rhythm of movement.

Gen exhaled quietly, his grin fading into something more neutral. "Guess that hit home, huh?" he muttered to himself. He didn't press further.

A few minutes later, Kohaku finally seemed to remember there was an alien in the room. "Oh, right!" she exclaimed, stepping closer to the tank. "So this is the one Stanley's been talking about!"

Senku looked up from his notes. "Careful, the glass is pressure-sensitive."

Kohaku ignored the warning, leaning in with bright eyes. "Whoa... you're one beautiful jelly-head humanic alien fish!"

The alien froze mid-motion.

Compliment — a sound they didn't quite understand but could feel. It was the warmth behind it and the excited tone. It wasn't analysis like Senku's or teasing like Gen's. It was simple and pure. An admiration of a being unseen before.

For the first time that morning (I think?), their glow returned. Though it was faint and uncertain, it was undeniably there. Kohaku smiled wider. "You're glowing! Does that mean you're happy?"

Senku gave an exasperated sigh. "It's just bioluminescent response to emotional or environmental stimuli."

"Uh-huh," she replied, clearly not listening.

Gen watched the exchange with quiet amusement, resting his chin on his hand. He noticed the way the alien looked at Kohaku. It was not with the cold curiosity they usually had, but something softer. Like they were confused. Maybe even... shy.

That made him wonder if the alien was beginning to understand what it meant to feel. Or has they always been?

....

Night settled quietly over the lab as all the voices and footsteps had long faded away. The hum of the machines filled the empty spaces, lowly and steadily, like the pulse of a heartbeat. The faint blue light of the monitors cast long shadows against the glass, painting the room in sterile calm.

Senku was the last to leave. He stood by the main console, scanning the latest readings on the holographic display.

Oxygen saturation: stable. Core temperature: slightly elevated, though still within range. Neural activity: steady but showing faint spikes during rest cycles. Something that had begun only recently.

He tapped the screen thoughtfully, lips quirking.

"Dreaming, huh?" he muttered under his breath, though the thought fascinated him. If the alien could dream, it implied higher cognitive processing; imagination, maybe even memory retention. That would change everything about their understanding of its neurology. He made a mental note to monitor it more closely.

Next, he flipped through the rest of the data: trace mineral composition, feeding response times, and muscle regeneration rate. The alien's adaptability to Earth's oxygen levels had improved exponentially in the last few weeks. Their fins had developed a subtle iridescence under UV light. Perhaps an evolutionary response to the solar spectrum? He scribbled quickly into his notebook, scrawling half-legible formulas and hypotheses across the page.

"Tomorrow," he said softly, glancing up from his notes. His gaze flicked toward the window, where the faint moonlight poured in, silvering the outlines of the lab. "We'll try expanding your perimeter."

He looked toward the tank again. "There's a field behind the solar cells. Big, open space with no wind tunnels. One that has a good balance of moisture and heat. You'll get enough light there for proper photosynthetic calibration, if that's even what your skin's doing. And the soil there's got higher trace iron. It might react with that mineral compound in your dermal tissue. Worth testing."

His tone stayed even and calm, but there was a rare, quiet warmth under it. ( ⸝⸝´꒳`⸝⸝) He adjusted a few settings on the console; lowering the filtration rate to mimic night-cycle conditions, then tapped the tank's surface once with a knuckle. A habitual gesture of his. "Rest easy, alright? Big day tomorrow."

The alien floated near the glass, unmoving except for the faint pulse of their glow beneath the water.

Senku lingered just a second longer, staring at them; at how still they were, how.... quiet. Something about that silence always stirred an odd thought in him: intelligence without sound. Communication without language. He wondered what kind of society produced that? A world of thinkers who never needed to speak.

He shook the thought off with a quiet exhale and reached for his logbook again, jotting down one final line in his spidery handwriting:

"Plan: test light response beyond the controlled area. Observe locomotion on natural soil. Record photochemical reaction and body temperature changes. Possible behavioural deviation outside confined environment — record closely."

He tore the page from his pad and pinned it to the board beside the console. Then, after one last glance toward the tank-- I mean, toward the alien's soft luminescence swaying like underwater starlight, he straightened, rolling the stiffness from his neck.

"Tomorrow, then," he murmured.

And with that, Senku turned, his lab coat brushing softly against his legs as he crossed the room. The automatic door hissed open, releasing a brief draft of cool night air before sealing behind him.

The lab fell silent again. Save for the rhythmic hum of machinery and the faint, breathing pulse of light from within the tank. The alien stayed where they were, body gently drifting with the current, eyes tracing the ceiling lights until they dimmed one by one. The sound of the filters... the soft trickle of bubbles... it was all familiar. Safe, even. But tonight, it didn't feel quite right.

Something inside them stirred. Restless, how strange. Some kind of tightness in their chest that they couldn't name. Their glow pulsed faintly in rhythm with their unease, each flicker a quiet question they couldn't ask.

They closed their eyes, letting themselves sink deeper into the water, until the world turned quiet and the weight of thought slipped into dream.

Home. (๑•́ -•̀)

@ asuna-luino all rights reserved do not steal or alter my works in any form.

ᯓ★Ahhhh, sweet sweet misunderstanding. I mean, fish hug each other during mating, right? ψ(๑`꒳´๑)ψ

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@verysanesenkufan @lovingyeet @abyssal-via @imsimping4life @ekiimori

[cherryexplosives-deactivated202]

Fool | Ishigami Senku

Yes, even geniuses get stumped by emotions; when the brain and heart clash.

⏔⏔⏔⏔⏔⏔⏔ ꒰ 𖥔 ꒱ ⏔⏔⏔⏔⏔⏔⏔

NEVER MET! - CMTEN || Fool - Frankie Cosmos || Fool - Cavetown

▶︎ •၊၊||၊|။||||။‌‌‌‌‌၊|• 0:34

》 Hey, um… I know you're probably busy, but I was wondering if you remembered we were supposed to hang out today? I mean, it's fine if… y'know… 'cause you're busy. I just…

Your finger hovered over the trash button. Before you could change your mind, you deleted the voice message.

It's no use. Just go home, wash up, and sleep. He probably remembered your request, but he must've deemed another thing more important. He does that all the time.

You trusted his priorities—besides, how was he supposed to take you to the moon, like he promised?

…good grief.

A part of you felt bad for feeling this way.

You have known him since you two were kids, both sharing an affection for space, that dream to reach for the stars together. He fed you promises and kept your heart well with a smile, saying that you and he would land on the moon and then some once he was done. You'd be right by his side every time he wanted to experiment—he never really invited you, but you never really gave him the chance to. You'd volunteer every time.

But as you grew up with him, you only had that inevitable pain of "falling" hook your chest and reel you into him. The way his eyes glittered like galaxies swirled into two big, red stars… oh, how could you not want to cherish those rubies forever? He didn't mean it—he didn't want you to fall for him, nor did he ask you to.

Then again, Senku always said human emotions were illogical.

Before you knew it, when you both reached high school, you couldn't take it anymore. Oh, kind and sweet you, always letting people walk all over you, always discarding yourself for someone else. You just had to be selfish, just this once.

All you wanted was to feel like he was yours. That's all. He didn't even have to act the part—he didn't have to say "I love you," either—you'd feel all right if he did so much as just text it to you.

So, as selfish as it was, you proposed a deal.

In return for a relationship—one that you could call romantic while he just stood for show—you'd fund his experiments. Your family was wealthy, you had the money, so why not?

To your joy, at the time, he agreed. He took your hand, and you ran with it—before he knew it, everyone knew you were together. He'd play along, nodding and brushing off everyone who congratulated him. You weren't ugly, you were quite the opposite, which was exactly why the whole school wanted to give their applause for him.

Senku didn't mind it, really. As long as I fund his experiments, you thought.

Then Medusa took your wealth away—the petrification of the whole world set everything back to zero. A factory reset, a second chance for humans to redeem themselves, but in this world, your gold was worth nothing. You had none, now, anyway. The foundation of your relationship had been reset, just as the world did, because now, he was barely treating you like a friend and more of an assistant, as if since you could keep up with his intelligence a little more, you were assigned that role as soon as he found your stone corpse and revived you.

You tested the waters a few days after he revived you, which was still back with Taiju and Yuzuriha. Toed the line, hesitantly reached out for his arm to see if he'd let you hold him. To your surprise, he would.

But, when you guys split up, your friend group wilting into a pair in each team, he got quieter. Colder. He still let you touch him, though. But he so blatantly said one day, in front of your newfound friends in the Kingdom of Science, "Whaddaya mean? Deal's off, now, isn't it?"

You thought he'd have gotten an inkling of feelings for you with how well you treated him—it was never flimsy, either. Your time together forged your bond. The shared laughter, struggles, and stories… the effort you put into keeping up with his intelligence so he wouldn't have to explain everything to you, and him doing research on your beloved shows and books and niche little interests so he could relate to you.

That's right. Your hopes weren't baseless. But anyone would take recommendations from their friend. Sure, your hopes were perhaps stretched to Mars, but you had hope, anyway.

Fool.

You were constantly cast aside, always put in the shadow of what you thought existed between you and him, but it'd be unreasonable to confront him about it. He was a scientist, someone everyone could trust, respect, and depend on.

He got someone else, too. A girl whose name you didn't bother learning. The head priestess, was it? You've only heard of her, since you never wanted to enter the village. You'd only curse her name if you knew it, then feel guilty after. She had manpower on her side—a whole village of people who would listen to her. Senku needed that. They declared him hers, and, without protest, he stood there. Disinterested, sure, and he divorced her right after, but it hurt how he could just shrug you off so easily. If he saw love as something so small, you shouldn't be feeling so downcast—that man would never love anyone more than he loved Lady Science.

Besides, you were just… there. A person with the knack for entertainment. All you had was a song on your tongue, cherry-syrup-dipped words, and hips and legs to dance away into forgetting him. But what were you compared to him?

A fool. That's what.

A jester.

Entertainment. That's all, that is all, and you had to accept it. You knew everything Senku did, it was for his benefit, yet you still went and fell.

Someone shoot me, you grumbled as you dragged yourself out of bed once again.

☆☆☆

You didn't say a word to anyone today. You weren't as outgoing and as bubbly as you used to be.

It was all weighing down on you. You knew he was someone who wouldn't care unless he received something in return. You just hated how you felt betrayed, anyway.

You sat on the edge of a cliff. You were just one push, one inch from falling and never resurfacing, facing the west as you watched the sun dance to its resting bed.

Meanwhile, Senku was doing his usual checks on the inventions placed all over the small sanctuary he dubbed the 'Kingdom of Science', making sure they were still intact before nightfall. One could never be too careful, not during times like these.

Eventually, he made his way to the little corner you kept for yourself. It was a habit, now, ushering you to your spot in the hut to make sure you don't do anything stupid.

"You were quiet today," Senku remarked as he settled down next to you.

You flinched, and he caught that shudder.

His voice still held so much weight in your chest, and your shoulders showed him that by tensing up.

"…tired," you said, curt and cold. You avoided his eyes, too—those burning red stars that you only wanted to protect.

Senku hummed. He read your silence like an open book. He sighed, tilting his head. "Something's on your mind."

"Pretend you don't see anything, then," you said, turning away further, your legs ceasing their swinging.

"Hey," he clicked his tongue. "Not one millimeter further." His voice was stern, but not unkind. Just enough to show you that he wasn't playing.

You stopped.

He leaned closer, trying to catch your eyes without touching you. He knew how delicate you were when you were emotional. You were not like a sickly little flower, but like a time bomb on its last few seconds.

"Tired?" he continued, softer. "Or just hurt?"

You huffed, furrowing your brows and trying to act stern and cold, but that white flash of all those stifled feelings was so clear in your eyes that you might as well be screaming it. You jumped from the edge onto your feet on the surface of the cliff. You did it on purpose to frighten him.

"Your girlfriend won't appreciate you fussing over some nobody on the side," you mumbled quietly, brushing past him.

Senku’s hand snapped out—faster than he normally could—and caught your wrist before you could fully brush past him. His grip wasn’t painful, but it was firm enough to stop you and use you as leverage to pull himself up.

"First off," he said, now face-to-face with you, voice low and edged with what you could only classify as wariness. "Not my girlfriend. Technically, she was my wife, and she was a tactical asset. Nothing more."

Silence.

"And second?" He tilted his head slightly, eyes narrowing just enough to make the point land with the accuracy of a surgeon with a scalpel in hand, "You don't get to call yourself that."

You yanked my arm away. "You don't get to say that," you said, albeit your voice a little weak. "I call myself whatever I want. You've no rights over me. Besides," you laughed bitterly. "I was one, too. A tactical asset."

Senku's gaze hardened at your words, his grip on your wrist tightening in response.

"And whose fault was that?" He questioned harshly. "You were the one who supported my every scientific endeavor. Hell, you proposed it. I had no reason to turn your offer down." He stepped closer, brows knitted together like he was scolding you. "You paid for my materials, the space to perform experiments," he said, his voice a strange mix of two completely different emotions that you had no idea how to label. "You were the reason I could even perform half of the experiments I did back then. Indeed, you were an asset. A useful one. Plain and simple."

"Exactly," you turned to face him, even if it did hurt to look him in the eyes. "But I didn't think of you that way. If you thought I did, then oh, you're so, so wrong, Ishigami. You're right about everything, but in love? You aren't the expert. No one is."

You crossed your arms. "I can't believe I fell for such a calloused man."

His eyes flashed with something, but it left before you had the chance to identify the emotion. He'd been called many things—cruel, manipulative, mad, genius—but never a man lacking in the field of love. Then again, he never played in said field.

"And you're so knowledgeable about love, aren't you?" he retorted, the edges of his words cutting like little needles to the chest. "How long did your longest relationship last, again? Remind me."

"Two and thirty-seven hundred years."

Silence.

"Ours, if it wasn't obvious."

Your answer was weak. Small. That's exactly how you felt. Pained to the absolute core. "Ours. Surprisingly enough, I loved ours. I miss it. I hate how I painted it as something other than a transaction." You scoffed. "I'm stupid. So stupid for even coming up with that deal. So stupid for feeling for you like I did."

Senku’s expression flickered. For a moment, he looked almost frustrated.

"Then be stupid," he said flatly. "Because the alternative is throwing away everything we did build together just because it didn't match your idealised fantasy of what love should be. It was in the name of science. Always was, always will be."

He paused. Enough room for a breath.

"...and I'm sure I don’t need to remind you that the human emotion is illogical."

You closed your eyes.

What were those promises?

Breathe, breathe, before you cry in front of someone who can't understand the human emotion.

Were they just you trying to indulge me so you could get help? Is that it?

He thinks emotions are illogical.

Were they tricks? Huh?

He thinks you are illogical.

Silence. Again. Then—

"God," you smiled, but it lacked warmth, and he flinched at the way your whole body seemed to shiver with restrained tears. "I wish we never met."

Your voice was rough. Jagged, like skin ripped apart with blunt teeth. You pulled away and stormed off, quietly but harshly swiping your eyes before any product of heartbreak had the chance to drop.

Senku didn’t stop you this time. His hand hovered mid-air for a heartbeat. Then, almost reluctantly, he dropped it back to his side.

He watched your retreating figure—shoulders tense, breath shaken—and exhaled sharply through his nose.

"...I'm ten billion percent certain," he muttered under his breath. "That's a lie."

But whether it was directed at you or himself, he wasn't sure. By the time your body left his sight, the darkness of night cast over the whole map, as if you took the light with you.

He headed to the hut, but only Chrome was there, already asleep. He expected it, but he just had to hope. He tried to convince himself that he was unfazed by your outburst, that your words meant nothing to him, but even a genius could be susceptible to the complexities of human emotions.

He couldn't understand why he felt so… agitated, was it? Off-kilter, maybe?

Senku leaned against the wall of the hut, arms crossed, and let out a heavy sigh.

"This is just the turbulence of emotions," he murmured, almost defensively, "I'm unaffected by such irrationality." …right?

☆☆☆

When the next day came, you were suddenly... somewhat insane. No, that's not the right term—perhaps overly energetic. Your reckless but very fun behaviour was back. You were performing, dancing for the people who ate and wanted entertainment. The wind danced with you, your role as entertainer being fulfilled to the brim.

It's like his presence was nothing to you. That was your way to cope—ignore, ignore, ignore, until it's all gone. And it was working, you thought.

Meanwhile, Senku observed you from a distance. The way you danced around, entertaining the people as if the previous day's events hadn't even occurred… he couldn't help but feel irked by this. You'd always been good at masking your emotions, but this… this was borderline absurd. You're avoiding him.

As he watched you dance and turn, the urge to confront you tugged at the back of his mind, but a stubborn part of him (that part of him being the more dominant part of him) wanted to see how long you could maintain this facade.

You chirped the closing line of the song as you patted the tambourine he made for you. The song was something about "if a man irks you, look the other way."

Then you paused. Emphasis, drama.

Then you picked up your cup of booze to walk with a calculated elegance to one of the men seated at one of the tables. You sang, drawing out the last vowel, the song suddenly blaring into his ears its true meaning: "if he irks you, find another man."

He felt a muscle in his cheek twitch.

The crowd laughed and cheered. Some even whistled in response to the implication. It was clear that your act was popular among the villagers, especially the male ones. Senku clenched his jaw. He initially wanted to see how long you could handle keeping this mask up, and now he's wondering if he'd unintentionally started a challenge within himself to hold back from making something explode just so you'd look at him again.

"And that, ladies, is how you deal with a cold man," you leaped back onto the spare table they chose for you to dance on and bowed low, shaking your tambourine along with the applause. You looked up, not once noticing him.

The applause only grew louder, and the crowd even threw flower petals over to where you stood. Some even chose to offer up valuables as if you were a deity to worship.

You sat down on the tabletop, gracefully picking up the petals they tossed over as a joke. "Hey, now, if you give 'em, I own 'em," you teased, pointing at one of the older gentlemen with an arched foot who offered you a beautiful hand-crafted vase, laughing when he laughed, too. Which, in response, he raised his glass in a mock-toast.

"If you're tryna woo me, it's working! More drinks, for the lovely crowd, I implore thee," I chirped again, gesturing at Kinro and Ginro with the incoming alcohol.

"Honestly, you should do this as your job," Ginro cheered from the left side. "You're a natural!"

"I'd bet anyone would trade their most precious things just to see you perform," Kinro said, affirming you with a nod.

The men hooted and hollered in response, clearly enjoying your interactions with them. "Careful now, you'll have them all proposing before the night is over!" someone remarked, clearly amused by the whole spectacle.

Another, this time a lady, chimed in. "Hell, I'm tempted to offer a ring myself if you keep dancing for us all evening long!"

Some even started chanting your name, the alcohol clearly lowering their inhibitions.

Meanwhile, Senku's knuckles were paper white from how hard he was gripping the table he sat by in the far back.

You accepted a tall glass of hard alcohol and chugged it down. You planned to forget, tonight, so you might as well, right?

"Encore, ladies and gentlemen?" You raised a brow, smiling charmingly.

Another round? Another show of you making a fool out of yourself and prancing around with sultry songs for villagers who barely knew you?

No way in hell.

In one swift motion, he stormed over and yanked you off the table by your wrist, ignoring the startled protests from the villagers around him. "Enough," he hissed under his breath, red eyes burning with something dangerously close to hurt. "You're coming with me. Now."

He didn't wait for a response. He dragged you away to the elevated hut.

"Wh—!? No! Hey!!" You stumbled along, but you still tried yanking away. Senku was never this strong. What the hell happened? "Let go! The party was just starting! What do you want from me!?"

"Shut up."

Finally, once he'd successfully hauled you into the hut, he whirled around to face you. He was fuming now, his usually calm air completely gone. You never saw him like this, before—all bared teeth and crooked jaws.

"What the hell was all that back there?" He snapped, his eyes blazing. "Flaunting yourself like some kind of toy for their entertainment? Have you no dignity?!"

You scowled, practically baring your teeth in return. "Fuck off, you're my ex," you yanked away, finally freeing your wrist. "Go to your girlfriend. I bet she'd start fuming too if she knew what you were doing. Besides," you shoved him back by the shoulders. He, being weak, stumbled a little. "What am I but a fool?"

The man's eyes darkened, the mention of the girl and of you being a fool leaving a bitter taste in his mouth. He stepped closer to you, his voice a low and strained sting of anger.

"Like I said, not my girlfriend. And don't bring her into this. This is about you and your little performance back there. Do you think I enjoyed seeing you act like some dancer for those villagers to ogle at?"

His words were harsh, but there was an undertone of something. You squinted, then—

Ah.

Jealousy.

"You said it yourself, Senku," you said, unrelenting. "I was nothing more than a deal for your supplies," you hissed, biting back with the same venom. "Don't start. I'm not above biting you 'til you bleed."

Senku's eyes flared with that same anger. He took another step closer, his chest nearly touching yours. Nearly. "Here you are, throwing a fit like a petulant child. Clearly, I struck a nerve." He whispered so low, it felt almost intimate—you'd think so if you were still delusional, but the alcohol brought clarity instead of that false hope. He paused, his burning gaze trained straight to you and nowhere else. "Is it because you still care? Is that why you're acting this way? To get me to cave and lose my mind? Hurry up and talk, damnit, you're pissing me off—!"

"Of course I still care, you stupid little shit!" you yelled—no, you cried, your voice cracking into inaudibility when you stomped your foot. "And clearly, I'm trying to forget about the shit you make me feel, so do us both a favor and leave me alone!"

The man's expression flickered, surprise briefly breaking through the burning anger. Hearing you finally admit it… it hurt more than he expected. He tried running this situation through various calculations, contemplating how he'd react or feel to whatever you say, but for once, his calculations were off.

"You can't forget about it, you idiot," he said, his voice low. "You can't stop caring just because it's inconvenient. Believe me, I tried."

You raised a furrowed brow. He tried.

He tried? Him?

"What the hell do you mean you tried," you said lowly, not backing down from returning his harsh glare. "No. No, you can't just so easily say I mean nothing to you then turn around and say that. If you're twisting your thoughts and words, then you're being illogical, Senku."

His breath hitched—just slightly—at your words. For once, his usually sharp tongue failed him.

"...You don't get it," he muttered, voice rough with something other than frustration now. "I can't. I can't just not care. Because every time I try to convince myself that you were just another variable in what I had to do, I… it…" he exhaled sharply through his nose.

"It doesn’t add up."

And just like that, your fire quit its flickering. It calmed into a stillness, still burning, still angry, but it was willing to listen. How could it not stop to hear him out? He spoke as if every word was a prayer, as if he said it too loudly, you'd disappear into smoke and fade into the air.

Like he was afraid he'd lose you forever.

Senku's fingers twitched, his arm suddenly halfway between gripping your chin to force eye contact and recoiling like you'd burned him. He couldn't make up his mind—for once, he was so disarmed he couldn't think.

"Because I wanted it to be true," he admitted, voice low. "But no matter how many times I told myself that, none of my equations ever accounted for the fact that—" he paused. He straightened a little, his horrid posture suddenly lightening, as if he was steadying himself.

"…that every time you walked away, something in my chest would feel off." His jaw tightened. "Illogically so."

"What are you saying," you said, harsher than you'd intended. It wasn't a question—it was a demand.

"I don't know, okay?! I don't—" he took a deep, deep breath. He saw that you stiffened and that your brows furrowed, so he had to calm down or else you'd leave.

"…no, you… you're… more than that," he answered. "Than just a deal. You always have been. Whether I wanted to admit it or not."

He paused, his gaze searching your face, as if trying to decipher something.

"…damn you. This… this whole 'us' problem, it was never meant to be this complicated—why's it so complicated?" he said, his voice breaking a little at the end of the last word, vulnerable and almost a little intimidated. By what? It could be the hundreds of feelings in his chest—was this how you always felt? Your heart bore so much feeling, is this how painful it was to carry it all?

It could be the unfamiliarity of being vulnerable. It could be the surprise that he's trying to be vulnerable.

He couldn't put a finger on it, but you knew what it was.

It was everything at once. He feels, to your surprise, and it's just as much as you do.

"You probably get how hard it was to keep my cool," he said, stepping back a little. Just a little. "When we were with Taiju and Yuzuriha, it was easy to cover. I didn't… god forbid, if one even exists, I didn't know how to go about it. How I felt."

He sucked in a breath, stealing air from the world to fuel his confidence, but no matter how hard he tried, he just seemed to wilt in front of you. "When we were alone, I… I get I must've been cold. Distant. I treated you like an extension of myself, like… like I was avoiding you." He laughed. Bitter, humourless. "All because I didn't know how to just tell you. I was unsure and couldn't tell how to… just… gah, I don't know!"

You softened. You cursed yourself for it; don't let him in again, don't do that, he's... he's...

…and yet, your heart fought for him. It said: Senku never lies. Not unless you're his enemy. He's honest. Sure, he'd lie out of respect to a child or an elderly person, but he's not like that magician who lies to get his way.

"...don't lie," you said firmly, but it's clear you were wavering. "Say you mean it. Swear it. I don't want you to turn around and say you never meant it. I need to hear you say it."

And in those bright red stars shone the light you swore to cherish forever. It disappeared to you for a moment—you only realised its absence when they found that light again. Maybe it was the moon's doing. If it were, you'd plead that it stay in that spot forever so you could see his eyes glimmer that way until your last breath.

"I'm ten billion percent certain," he said with a voice so gentle.

Silence once more.

Then he moved, slowly reaching to put a hand on your shoulder, then shifting to the side of your cheek, as if giving you a chance to pull away. You didn't. He held you like he was trying to capture a fleeting butterfly, and when you leaned into him, his shoulders sank with relief.

"I should've just said it straight with you since the beginning." He furrowed his brows, his expression shifting into guilt. "But I'm... I'm absolutely sure. I'm as sure as numbers are infinite—I love you."

...woah.

His lips weren't used to it. It's obvious. The consonants dragged and the vowels were too fast, but through his eyes and in his soul you saw that he meant it.

"I don't lie about facts," he said, whispering. "And this?" he gestured between the two of you with his free hand before letting it fall limp on his side again.

"This is a fact."

The end :P pls feel free to leave comments n such!! I luvvvv reading those 😋😋😋

[asuna-luino]

I'm so in love hshshshshshsh

[orchidame]

[asuna-luino]

This is actually very accurate, wha—

[asuna-luino]

Beyond - (Senku x Alien!reader) 7

ᯓ★1033 words part 7

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Previous: Life in the lab had settled into something almost peaceful. When Chrome and Suika finally visited, they found Senku flat on the floor, covered in flowers, while the alien fussed over his hair and Gen cheerfully played florist. Laughter filled the lab, breaking the usual hush of science and steel. But when night fell and everyone else had gone, Senku stayed behind. He talked about family, warmth, and the people he'd lost. Half to himself, and half to the quiet figure watching him through the glass. The alien couldn't answer, yet their eyes said enough. In that stillness, between a scientist and a stranger from the stars, something gentle began to grow.

They wondered if he would miss them when the experiments ended. Or would he simply file the results away and move on, just as their kind did after a brief encounter in the dark?

The thought made their glow dim.

They curled within the water, eyes heavy. The hum of the lab machines became distant, like waves echoing through their memories. And as they drifted into sleep, one final thought passed through their mind. A quiet and uncertain thought, but deeply human.

They did not want to be forgotten.

The faint light beneath their skin pulsed once, then faded, leaving the lab in stillness. For the first time since they arrived on Earth, the alien dreamt… not of the deep ocean of their home, but of sunlight, laughter, and a human voice calling them companion. A dream of home.

Morning came softly to the Kingdom of Science. Pale sunlight spilt through the glass roof of the laboratory, tinting the floor in a faint, gold shimmer that glided across the walls and metal counters.

Senku arrived not long after dawn, coat dusted faintly with mist from the early river fog. Gen trailed behind him, yawning dramatically while balancing a steaming cup of something that was probably coffee, or as close as science could make it.

"Morning, our darling alien head," Gen called with his usual lazy grin as the door hissed open.

The alien stirred inside their containment tank, drifting upward from where they had been curled near the bottom. Their bioluminescent lines glowed faintly, sluggish and pale at first, as if they had just woken from a deep dream. Their gaze moved languidly toward Gen, unfocused.

Then they saw Senku.

In an instant, the alien's glow brightened, a soft bloom of colour spreading across their form. Their fins lifted slightly, eyes sharpening with alertness. The difference was immediate and impossible to miss.

Gen let out a knowing hum, sipping his coffee. "Heh. Someone's got a favourite scientist," he murmured under his breath, earning an unbothered side-eye from Senku.

Senku adjusted his gloves. "Their photosensitivity just reacts to familiar figures, that's all."

"Uh-huh," Gen replied, voice steeped in amusement. "Whatever helps you sleep at night, dear Senku."

Senku ignored him. He approached the control console, checking the tank's data display. "Morning routine might be delayed today," he said conversationally, glancing at the alien. "You'll get your sunlight later. Kohaku and the others are returning from their expedition this morning, and since Chrome's still away, I'll be handling the welcome myself."

The alien tilted their head, eyes blinking once, slowly. Of course, they didn't know who Kohaku was, but Senku still explained. His voice was steady and patient, as he often was when teaching. He described Kohaku's golden hair, her unyielding spirit, and the journey she and her group had taken across the mountains to gather new minerals.

They listened, or at least, it felt that way. The water rippled gently each time his voice shifted tone.

Afterwards, Senku resumed the day's procedures. "Alright, let's start with baseline readings. Gen, you handle the monitor."

Gen nodded and set his cup aside, activating the holographic interface. Together, they moved through their practised routine: water temperature, oxygen levels, nutrient composition, and finally the alien's biometric readings. Senku read out values while Gen noted them down, the hum of machines and the quiet bubbling from the tank filling the silence.

"Heart rate consistent," Senku murmured. "Oxygen intake normal. No metabolic deviations from yesterday."

Gen smirked. "Guess even otherworldly beings get comfy once they've got their shrimp buffet, huh?"

Senku snorted lightly but didn't answer.

They were halfway through recording when the door burst open.

"SenkuuUUuu!!"

The voice was bright and familiar — too loud for the sterile lab air. A flash of yellow streaked past the threshold before either of them could turn fully. Kohaku, sun-kissed and grinning from ear to ear, charged straight toward Senku.

Before he could react, she threw her arms around him in a tight, bone-crushing embrace.

"—Tch, oi, careful with the equipment!" Senku's voice came out strained, though there was a rare flicker of warmth in his tone. \(´ཀ`」 ∠)_ He's mine bro.

Gen chuckled behind him, hands tucked in his pockets. "Can't blame her. Been months since she's seen you. You should feel flattered, you know."

Senku rolled his eyes but didn't push Kohaku away, allowing her a moment before gently setting her back. "Welcome back, Lioness. Guessing the expedition was a success?"

Kohaku grinned wider. "Of course it was! You'll be impressed when you see what we brought back."

As they exchanged words, Gen turned to resume the data readings. But as his gaze flicked toward the tank, his amusement faltered.

The alien's markings: those luminous veins that traced along their body were flickering, dimming and brightening in quick, uneven pulses. Not the calm rhythm of contentment, nor the soft, steady glow of curiosity. It was erratic. Uneasy.

Their expression, once neutral, had shifted. Their eyes, which were usually placid and unreadable, now carried a faint shadow of something he couldn't quite name. Their fins lowered as the water around them stilled.

Gen frowned slightly. "Huh…"

He watched as the alien's glow dimmed almost completely before stabilising into a faint, pale hue. Their gaze wasn't on the machines anymore. It was fixed on Senku… or rather, on the sight of Senku and Kohaku laughing together.

That look, it wasn't confusion this time. It was something heavier. Gen recognised it instantly, though he didn't say it aloud.

Jealousy. He exhaled slowly through his nose and turned back to the console, pretending not to notice. "Measurements look stable," he murmured instead. "Everything seems fine. Time for your morning shrimp pallets, hm? "

But out of the corner of his eye, he saw the alien lower themselves toward the bottom of the tank, curling slightly, faint light fading until they looked like little more than a shadow beneath the surface.

And for a moment, Gen wondered, not as a mentalist turned scientist's assistant, but as a man who understood emotion far too well. If the alien truly grasped what it was feeling, or if it was just instinct trying to mimic a heart.

@ asuna-luino all rights reserved do not steal or alter my works in any form.

ᯓ★Our alien is experiencing jealousy; it'll be Senku's turn soon. ψ(๑`꒳´๑)ψ

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@verysanesenkufan @lovingyeet @abyssal-via

[asuna-luino]

focus on your classes ofc, but... next chapter when? (im desperate)

The next one is the last one, I think ദ്ദി ˉ͈̀꒳ˉ͈́ )✧ see u again next week.

Beyond - (Senku x Alien!reader) 6

ᯓ★1752 words part 6

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Previous: The days of research gave way to something softer. One lazy afternoon, Senku drifted off under the sun, only to wake and find the alien quietly weaving flowers into his hair. What began as curiosity turned into a wordless kind of peace. Two unlikely companions sharing warmth and stillness in a field of green. For once, there were no experiments or questions; just a quiet moment neither of them seemed eager to break.

Days passed in their usual rhythm, though the lab had grown livelier of late. Suika and Chrome had finally found time to visit the alien. Their schedules had kept them anchored to the crash site, buried under layers of soil analysis and data interpretation, but curiosity eventually won over duty.

They arrived expecting sterile experiments and quiet observation. What they found, however, made them freeze in the doorway.

Senku was on the floor, lying flat on his back, covered head to toe in flowers and leaves. His pale hair, one that already resembled some strange hybrid of onion stalks and silk threads, had become an elaborate lattice of vines and petals. The alien was delicately tucking another bloom behind his ear while Gen, beside them, handed over fresh flowers like an overly helpful florist assistant.

"Senku, you look like a very committed botanical specimen," Chrome managed, trying (and obviously failing) not to laugh.

Senku didn't even glance up from his reclined position. "Data collection, Chrome. Try it sometime."

That was the alien's first meeting with the rest of the group, and it certainly is an interesting one.

As time continued its quiet drift, the atmosphere in the lab softened. The alien still never spoke, but communication came in subtler ways like from a flick of their fins and a tilt of the head to the way they'd float closer when someone spoke to them softly. Exposure to sunlight became part of their routine; they'd step outside almost daily now, and the scientists could practically see the improvements in their physiology and responsiveness. Research had accelerated beyond expectations.

One evening, the lab was still, bathed in the golden spill of a fading sunset. Everyone else had gone home for the day: Xeno to review data, Gen off somewhere doing who-knows-what, and the younger pair back to the village. Only Senku remained, as always.

The alien floated quietly in their tank, eyes half-lidded as they observed him scribbling equations onto a scrap of paper. The faint hum of the machinery filled the air, punctuated by the occasional soft ping from the main console.

Senku looked up when the faint ping broke the monotony of the lab's soft hum. A small notification blinked on his screen. It was a message from Chrome.

"Taking Suika to visit her family for a few days. Don't blow up the lab while we're gone."

Senku huffed through his nose, an amused smirk tugging at the corner of his lips. "Tch. As if I'd waste perfectly good equipment for an explosion that doesn't contribute to progress."

Still, as his eyes lingered on the screen, his expression softened ever so slightly. He leaned back in his chair, stretching an arm behind his head and letting his weight sink into the creak of worn metal. "So it's just us tomorrow, huh?" His voice broke the silence, the kind that didn't demand a response.

He turned toward the tank where the alien drifted quietly, their body swaying with the slow circulation of water. Light from the overhead lamp rippled across their skin like molten glass. "No Suika to wave through the glass. Guess you'll have to make do with me."

The alien tilted their head at him, eyes unblinking as the faint shimmer of their fins caught the light. There was no sign of understanding, but also no fear. It was just a calm, steady curiosity that mirrored the scientist's own.

Senku gave a faint huff of laughter. "Family, huh… you probably don't even know what that means."

He paused for a long moment, tapping his pen against the table. Normally, he filled the silence with equations and hypotheses, but tonight, his thoughts tangled somewhere between logic and nostalgia.

Still… he talked anyway. Because that's what Senku did. When words couldn't build machines, they built bridges.

"Family's what keeps a species from dying out. Called it an evolution's way of ensuring survival through connection. But… it's more than that, too." His tone softened, almost musing. "It's warmth. Shared meals, shared burdens. A reason to wake up and keep pushing forward."

He chuckled quietly. "Sounds sappy when you say it out loud, huh? But it's true. You'd think a man like me wouldn't care about such sentimental crap."

For a moment, he fell quiet again. The mechanical hum filled the air steadily.

"I don't really have one left," he admitted finally, his voice lower now. "Byakuya — my old man — he was the closest thing. Smart as hell, well, not really, maybe a bit stubborn too. I got that from him." A faint smile ghosted over his lips before fading. "He's been gone for a long time. Everyone from that space station has."

He set his pen down, eyes distant. "The villagers, they're family too, I guess. But it's different. They're descendants of the people who believed in him. In me. That's… more responsibility than blood."

The alien floated silently, their eyes following him with the quiet attentiveness of a creature trying to piece together emotion through tone alone.

Senku gave a dry little laugh. "Talking to someone who doesn't talk back. Maybe that's a new low for me."

Across the room, the alien shifted, the movement sending soft ripples through the tank. Their gaze turned; not to Senku, but to a framed photograph mounted on the far wall. The picture was a rare one: Senku, Xeno, Chrome, and Suika, caught mid-laughter, a memory of lighter days. Around it hung others: faded images of old friends and lost comrades, frozen in time.

The alien's eyes lingered on those smiling faces. The concept of family might have been foreign, but the emotion in the photograph… the warmth snd the togetherness, was something instinctively recognisable.

Senku noticed the direction of their gaze and let out a breath that almost sounded like a sigh. "Yeah. Those guys," he murmured. "That's what family looks like. Messy, loud, brilliant, infuriating. But I'd still bet everything on them."

A soft sound broke through the hum of the machinery: a gentle knock against glass.

He turned, and there they were, closer now. The alien's palm rested lightly against the tank wall, right where the glass separated them. Their eyes met his, unblinking, yet softened by something subtle. Empathy? Maybe, or perhaps recognition. It wasn't a mimicry of emotion; it was real.

Senku stared back for a long while, caught off guard by the quiet sincerity of it. For once, he didn't analyse or question. He simply felt it.

He gave them a small smile, but a genuine one. "Yeah," he murmured, voice barely above a whisper. "Maybe we're both alone, huh?"

The alien tilted their head slightly, as if acknowledging the truth in his words. And then the lab fell silent once more, but it was no longer empty. The air felt warmer somehow, as if something fragile had just been exchanged between two beings who shouldn't have understood each other, but did. It wasn't friendship yet, nor affection. But it was a connection. A shared solitude.

Senku continue to stay in the lab longer until past midnight. Typing final notes, collecting a few last readings, and organising the files into neat folders as the faint hum of the machines filled the room. That sound of controlled life that the alien had grown used to.

When he was finally satisfied, he turned toward the tank. "That'll do for today," he said, voice soft but firm. "Try not to start another mini sea storm while I'm gone."

The alien tilted their head. Senku chuckled faintly before adding, "Don't give me that look. You'll get your shrimp in the morning."

With that, he pressed his palm against the glass. It became a small, habitual gesture of acknowledgement before he walked out. Soon, the door sealed behind him with its usual hiss, and silence settled once more.

The alien floated near the surface, watching the spot where he had stood. They could almost still hear his footsteps fading down the corridor.

Usually, this was the part of the night when their body relaxed. They would let the hum of the oxygen filters lull them to sleep and wake up to fresh water and warm food pellets. A simple routine, really, predictable and safe.

But tonight… something felt off. The silence pressed too tightly. They drifted downward, gazing at the soft glow of the control lights. It reminded them — faintly — of home.

Home. The word itself was strange now, heavy with distance.

Their planet was a water world. Endless, deep, and dark. An ocean that stretched without horizon. Well, there are lands, but barely. The light there was weak, filtered through miles of dense water. They were a species built for it: luminous fins for navigation, dense skin to resist pressure, and eyes that could see colour where no light existed.

They lived solitary lives. Not because of cruelty, but because that was nature's design. Each being had a wide territory, hundreds of kilometres apart. Meeting others was rare and brief: to exchange resources, or to breed during the high tides that came once every few years. They did not stay together afterwards. No one did. Companionship was a concept as fleeting as bubbles rising to the surface.

There was no word for "family" where they came from. No one needed one.

And yet, the alien found themselves staring at the framed photograph on the lab wall. The one with Senku, Xeno, Chrome, and Suika, all smiling. The image made their chest tighten in a way they couldn't name.

That was family. A group bound by care, by something unseen and unspoken. Not for survival, not for utility, but for warmth. For belonging.

They remembered Senku's voice earlier, the softnsss when he'd spoken of his father and the faint sadness that lingered beneath his words. They didn't understand every term, but they recognised tone. It was yearning.

It was a strange feeling to see that expression on his face. On the sharp-eyed human who always seemed so sure of everything. He had looked… fragile. And the alien didn't know why that stirred something deep within them.

They thought of their own people, who never missed each other, who never worried when one did not return. Survival was the only truth. Loneliness didn't exist because no one ever learned to name it.

But now, looking at that photograph, and thinking of Senku walking away alone every night… they felt a strange ache in their chest.

Was this what he meant by longing?

@ asuna-luino all rights reserved do not steal or alter my works in any form.

ᯓ★So (⁠ ⁠˶⁠ ⁠❛⁠ ⁠ꁞ⁠ ⁠❛⁠ ⁠˶⁠ ⁠) finally romance. Prolly will ends in 4-5 chapters. No promises, though.

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@verysanesenkufan @lovingyeet @abyssal-via

[asuna-luino]

So.... im waiting babe..

Have this meme and get to work soon (no pressure tho)

Shhh... ( ˶°ㅁ°) !!

Beyond - (Senku x Alien!reader) 5

ᯓ★1165 words part 5

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Previous: With Senku coaxing them out beneath the open sky, the alien took their first steps into sunlight. Bare feet brushing through grass, as fins shimmer like glass in the warmth. For a fleeting moment, there were no instruments, charts, or fear. Only laughter carried on the wind and the quiet rhythm of discovery shared between two worlds. Senku sat beside them as they basked, their glow bright and soft against the golden light, and for once, science felt less like study and more like a connection.

Eventually, he leaned back, lying on the grass beside them. The air was warm as the clouds drifted lazily overhead. His mind drifted with them, tracing the past two months: from the crash, to the confusion, to the experiments, and to the long hours. Somehow, it all led to this moment of uncharacteristic stillness. Slowly, his eyes grew heavy, and before he realised it, he was asleep.

When he woke, the world was quiet. Too… quiet. He blinked and tried to sit up, but couldn't.

Huh. A small frown creased his brow. Something tugged at his hair when he moved. What? Turning his head, he realised that the grass around him had been woven. Knitted, in intricate loops, like a pattern of living threads… and his hair, his absurdly leafy hair, had been woven right into it.

Senku exhaled through his nose. He wasn't exactly annoyed, nor was he impressed. "Fantastic. The universe's first alien visitor is a grass stylist."

There was a rustle nearby. The alien was crouched beside him, humming faintly, while threading a small wildflower into one of the woven strands. He stilled, watching. Each flower added shimmered against his pale hair like soft shells scattered in green. They worked delicately, with careful fingers and a strange grace.

"Well," Senku muttered under his breath, eyes narrowing slightly, but his voice softer than usual, "that's… new behaviour. Decorative interaction? Territorial marking? Emotional bonding, maybe…"

He let out a small sigh, the corner of his lips quirking. "Fine. Keep at it, then. I'll log the data later." Senku continued to stay still, watching as the alien continued their quiet task of arranging flowers in his hair. They worked with surprising care; fingers brushing through the pale strands, selecting each petal and blade with instinctive precision. Sometimes, when they leaned too close while crouching to add another flower, the soft edge of a fin would glide across his cheek. The touch was a bit cool but smooth. Leaving behind a faint shimmer where the light caught it. Yet, neither of them seemed to mind.

For a few minutes, there was only the sound of wind and grass. Then the alien rose, walking off into the field. Senku propped one arm under his head and squinted at their retreating form. Not like he could move much with his hair tied to the grass. "Guess I'm not part of the experiment anymore," he muttered dryly.

That assumption didn't last long, though. A few minutes later, a handful— no, a bush of wildflowers hit him square in the face.

He sneezed as pollen clouded the air around him, shaking his head slightly. "Fantastic," he grumbled, blinking at the alien who stood proudly above him, holding the empty stems like a trophy.

They crouched again, quietly collecting the fallen petals and placing them across his chest, shoulders, and even his hands. Senku watched with raised brows, expression unreadable. The alien tilted their head, studying their own handiwork.

The silence stretched between them, a strange kind of peace. No words exchanged, no clear meaning… just two beings observing one another across an endless gulf of language. Still, there was something almost smug in the alien's expression. Like a faint pride glinting in their bright eyes.

"So," Senku said, voice soft, almost amused. "This is either decoration or… an offering? A cultural gesture, maybe. Or you're just decorating your favourite rock."

The alien didn't respond, of course, only blinked slowly.

Senku tried to lift his head to sit up, but it snagged on the woven strands again. His hair was thoroughly knotted into the grassy mat beneath him, practically fused to the earth. "Brilliant," he sighed. "Truly the peak of scientific dignity."

He reached to untangle it, but the moment his hand touched his hair, the alien's expression changed. Their eyes widened sharply in alarm, and their fins fluttered faintly as though in warning.

Senku froze.

"Well," he murmured after a pause, raising his palms slightly in surrender. "Message received."

He let his arms fall back to his sides, and the alien's tension faded. They watched him for a few more seconds before relaxing, content once more. Another new behaviour. He filed it away mentally. Protective over creation, a possible sign of attachment.

"You win," Senku said with a wry smile. "I'll keep it. At least until Xeno drags us both in for lunch." Not that the alien understood a word of it, but it didn't matter. The tone seemed to soothe them.

Quietly, they settled beside him, curling up close like a cat seeking warmth. The tips of their fins brushed against his sleeve as they shifted. Half-laying, and half-resting against his side.

Senku glanced at them from the corner of his eye. "You're far too comfortable for someone who met me in a lab tank after catching strays," he muttered. "Maybe it's the hair. You think I'm just part of the scenery, don't you?"

A faint sound left the alien's throat. Something that could've been a soft hum or a sigh. Well, fish don't exactly talk. Mostly. Anyhow, they lowered their head, resting it gently against the small cluster of flowers on his chest.

Senku exhaled slowly. "Fine. I'll allow it. You've earned a nap after all that floral craftsmanship."

He tilted his head back, eyes tracing the clouds above. The warm sunlight soaked into his skin, and for a rare moment, the great scientist allowed himself to do nothing. Absolutely nothing. But what neither of them realised was that they had an audience.

At the edge of the building, half-hidden by the shadow of the open doorway, stood Gen and Stanley. The two had been on their way out to fetch Senku for lunch, but the sight that greeted them stopped them in their tracks.

Senku lay stretched out on the grass, flowers scattered across his chest and hair like a living wreath, the alien curled against him in peaceful slumber. It was a scene straight out of some surreal pastoral painting. Utterly un-Senku, and yet perfectly him.

Gen stifled a laugh behind his hand, eyes gleaming with mischief. "Well, I'll be damned," he whispered. "Didn't I say it? Mysterious, graceful, borderline incomprehensible aliens are exactly a scientist's type. A match made in the stars, literally."

Stanley exhaled a long plume of smoke, unimpressed. "You're insane," he muttered, though his lips twitched faintly at the corner.

"Insane, but right," Gen replied, voice lilting like a tease wrapped in truth.

Stanley gave the pair one last look towards Senku, who was still unmoving, and the alien's fins as they fluttered gently in the wind before grunting. "I'll let Xeno know. Tell him to keep the food warm. No way he's moving anytime soon."

With that, he turned back inside, boots crunching softly against the gravel. Gen lingered for a moment longer, still smiling to himself, before following. The door eased shut behind them, leaving the scientist and the alien alone once more, wrapped in an unexpected kind of peace.

@ asuna-luino all rights reserved do not steal or alter my works in any form.

ᯓ★I saw a TikTok video of a lady webbing grass in a circular pattern, yeah, that one.

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