Oh, it's Cosmo!

22 || he/they || FtM/Genderfluid || Aroace || Canadian

[ohcosmo]

❛ꜱᴛᴀʀɢᴀᴢɪɴɢ ʙᴇᴛᴡᴇᴇɴ ʀᴇʙʟᴏɢꜱ❜

✬WELCOME✬ABOUT✬POSTS✬OCS✬INTERESTS✬ASKS✬

✦ TRANSMISSION 01 :: WELCOME

hello !! welcome to my page ☄. *. ⋆ i mainly reblog , but i welcome anyone to come hang out ˊˎ

✦ STAR CHART :: ABOUT

✧ early 20's // adult ✧ stoner ✧ aegosexual ✧ genderfluid // trans ftm ✧ any / all pronouns ✧ adhd & dyslexia ✧ scopophobia ✧ hyperphantasia ✧ canadian

✦ CONSTELLATION INDEX :: POSTS

✧ full tag directory ✧ ✧ ✧ ✧ ✧ ✧

✦ CELESTIAL BODIES :: SONAS // OCS

coming soon!

✦ ORBITAL DRIFT :: OTHER INTERESTS

you may have noticed my affinity for a certain group of turtles, but i also hold a soft spot for: ✧ Project Hail Marry // Bloodymarry ✧ Iron lung // Markiplier ✧ JoJo's Bizarre Adventure // Steel Ball Run ✧ Legend Of Zelda // BOTW & TOTK ✧ Five Nights At Freddie's // 1-2 & Security Breach ✧ Red Dead Redemption 2

other orbits i no longer interact with, but im happy to talk about: ✧ Eddsworld ✧ Undertale ✧ Ouran High School Host Club ✧ Cars // im accidently gay for a literal car.. tagged under #kachow ✧ Detroit Become Human non-fandom interests: ✧ weed.. yum ✧ birds // avians // pigeons ✧ moths & spiders ✧ gardening ✧ cross stich // sewing // beading ✧ collecting pins , tabs , rocks , feathers

✦ OPEN FREQUENCY :: INTERACTION

asks are always open, feel free to say hi, infodump, confess a secret, or just scream into the void ! i will not be sharing other socials here, but you are welcome to reach out and ask for them directly !

divider link

[rhysspiecez]

Yōkai

「 ✦ Samurai AU / Arranged Marriage Fic ✦ 」

TMNT BAY! Leonardo X F!Reader

⭑Summary: You are the eldest daughter of the Kurogawa Clan, a neighboring clan to the legendary Hamato Clan. With tensions rising and the threat of war against the Foot Clan growing closer, both clans are forced to seek strength beyond their own borders. In order to preserve their people and aid the war effort, the Kurogawa and Hamato Clans must unite..

.ᐟCW: Arranged Marriage, Period-Accurate Gender Roles, References to War, Political Marriage, Family Pressure, Mentions of Death and Warfare, Monster/Human Trope, Interracial/Inter-species Relationship (Human × Mutant Turtle) :p

⭑WC: 2060 words

Chapter I,

Leonardo, as the eldest son of the Hamato Clan, had long accepted that duty would always come before desire. Loyalty was not simply expected of him—it was woven into every lesson his father had ever taught, every scar earned beneath the weight of his armor, every oath sworn beneath the Hamato crest.

Rainwater dripped from the edges of his kabuto as he crossed the stone courtyard. Each measured step sent the plates of his armor clicking softly against one another, the familiar sound swallowed by the steady patter of rain upon the tiled roofs.

A summons from his father before dawn was uncommon.

A summons requesting all four brothers...Rarer still.

Leonardo slid open the paper doors of the dojo and stepped inside. Warm candlelight pushed back the morning gloom, illuminating polished wood darkened by decades of training. The scent of burning incense lingered in the air.

Splinter stood at the head of the room with his back to the entrance.

Raphael, Donatello, and Michelangelo already knelt upon the worn tatami mats, each dressed in full samurai armor despite the early hour.

Months ago, such caution would have seemed excessive. Now it had become routine.

The Foot Clan no longer hid within the shadows. Villages loyal to Hamato had begun reporting raids upon supply caravans, burned storehouses, and disappearing patrols. War no longer lingered as a distant possibility.

It waited just beyond the mountains.

Leonardo quietly lowered himself beside his brothers, resting both hands upon his thighs. His gaze remained fixed upon the floor.

No one spoke. Only the soft crackle of candle flames disturbed the silence. Splinter paced slowly across the dojo, the hem of his crimson robes brushing lightly against the tatami.

"Our resources..." he began at last, his calm voice carrying effortlessly through the room, "...are diminishing."

The words settled heavily over his sons. Leonardo listened in silence.

As heir to the Hamato Clan, every report of dwindling rice stores, exhausted blacksmiths, and missing patrols felt like another stone laid upon his shoulders. If war came, the burden of protecting their people would one day become his.

"We have spent many evenings meeting with our neighboring allies," Splinter continued. "Together, we seek a means of preserving our clans against the Foot."

Donatello inclined his head. "And have they offered one, Sensei?"

Splinter stopped his pacing. "They have."

He turned to face his sons. The candlelight caught the age etched into his features, yet his gaze remained unwavering.

"The head of the Kurogawa Clan has proposed an alliance more enduring than soldiers or grain."

A quiet silence followed. Leonardo found himself considering the possibilities. Shared fortifications. Joint patrols. Trade agreements.

He had scarcely begun weighing each option when Splinter spoke again. "A marriage."

Leonardo's composure nearly faltered.  His eyes lifted instinctively toward his father before discipline forced every trace of surprise back beneath a carefully composed expression.

Marriage..

An alliance not forged by steel... But by blood.

Leonardo had heard of such unions before. Marriages arranged not for affection, but for peace. For land. For prosperity. Yet never had he imagined himself standing at the center of one.

Especially not one such as this. The Hamato Clan had never hidden what they were.

Towering figures clad in armor, bearing shells upon their backs and strength no ordinary man possessed. To those who fought beside them, they were honored samurai.

To many others… They were yōkai. Creatures of folklore. Monsters whispered about beneath the safety of candlelight. A union between a human and one of the Hamato brothers was unheard of. Many would deem it unnatural. Sacrilegious, even.

But desperate times demanded desperate measures. Splinter's gaze settled upon his eldest son.

"The head of the Kurogawa Clan has offered the hand of his eldest daughter."

A measured silence followed.

"And you, Leonardo—my eldest and wisest son, destined for greatness—shall become her husband."

Leonardo had expected many things from this meeting. Orders to strengthen the eastern watch. A campaign against the Foot Clan. Perhaps news that another village had fallen.

Marriage... Had never once crossed his mind.

For the briefest moment, his thoughts abandoned the battlefield entirely. A wife. A stranger.

Someone whose life would now become forever intertwined with his own. Could he truly ask another to shoulder the burden of standing beside someone like him?

"...Is that understood?" His father's voice broke through his heavy thoughts.

Leonardo straightened instinctively. "Yes, Sensei."

His answer came without hesitation. Not because he desired the path before him… But because duty had never offered him the luxury of refusal. "Then it is decided." Splinter inclined his head.

"You are dismissed." Their sensei disappeared toward the rear of the dojo, his crimson robes vanishing beyond the candlelight. Only then did the brothers rise. Raphael let out a sharp breath through his nose.

"So instead of planning a battle..." He adjusted one of the straps on his armor.

"...we're planning a wedding." He bumped Leonardo's shoulder as he passed, not hard enough to wound, but enough to voice the frustration he refused to say outright.

Without another word, Raphael left the dojo. Donatello glanced toward Leonardo, lips parting as though he wished to say something. Nothing came.

Michelangelo offered only a sympathetic smile before following after their brothers. They knew better than anyone that Leonardo would need silence more than comfort. Soon, he found himself alone. The candles flickered gently against the polished floor. Rain continued to fall beyond the paper walls. The dojo, moments ago filled with the voices of his family, now felt strangely hollow.

Leonardo remained standing in the center of the room. A warrior trained for countless battles.

Yet somehow...The weight of a single promise felt heavier than any armor he had ever worn.

▬▬ι══════ﺤ

Simple, quiet mornings had become a luxury you no longer expected.

You sat beneath the shelter of the engawa, watching sheets of rain blur the gardens beyond the estate. Water pooled between the rows of vegetables and flowerbeds, bending delicate blossoms beneath its weight as it soaked the earth.

Ordinarily, you would have found comfort in the sound. Today, it only served as another reminder. The rain nourished the fields...But it could not restore what the Foot Clan had already taken.

Life within the Kurogawa estate had changed with the growing threat of war. Before sunrise, servants hurried through the halls carrying supplies instead of tea. Messengers arrived coated in mud from neighboring villages, bearing reports of stolen harvests, burned storehouses, and roads no longer safe to travel.

The laughter that had once drifted through the manor had long since been replaced by hushed conversations and worried glances. Even the mornings had lost their peace. Sleeping beyond dawn had become a rarity. Each day began with responsibilities waiting to be met—overseeing the household, assisting with provisions for the village, and offering what comfort you could to families whose lives had been touched by the conflict. War did not only claim lives. It stole routine. It stole certainty. And little by little...

It stole home..

The paper-thin shōji door behind you slid open with a gentle whisper. You didn't need to turn around to know who it was. Soft footsteps crossed the wooden engawa before your mother settled beside you, folding her hands neatly in her lap as she watched the rain alongside you.

"It's a little early for you to be awake," she said, her voice warm despite the chill carried in by the morning breeze.

You shrugged lightly, your eyes never leaving the endless curtain of rain. "It's peaceful--"

"For now." The two of you sat in comfortable silence.

The rhythmic patter of rain against the tiled rooftops filled the space between your words, while somewhere beyond the estate walls, the distant caw of a crow echoed through the morning mist.

Your mother smiled faintly to herself as she admired you.

"Hm... You've always found comfort in the rain."

"I suppose I have." You glanced over at her, expecting to find the same quiet peace reflected in her expression.

Instead, there was something else. Her smile was gentle, but it failed to reach her eyes. A weight rested upon her features, one she seemed determined to carry alone.

You had seen that look before. Whenever reports from neighboring villages arrived. Whenever another family sought refuge within your estate. Whenever your father returned from council meetings wearing the same burdened expression.

You wanted to ask what troubled her. To offer some measure of comfort. But you already knew there were some worries no words could ease.

Before either of you could speak again, the paper-thin shōji doors slid open behind you once more.

A household servant stepped onto the engawa and lowered herself into a respectful bow.

"My Lady... forgive the interruption." She turned her attention to you.

"Your father requests your presence in the council hall." A quiet sigh escaped you. Your father rarely requested your presence without reason. Especially not at this early hour.

You exchanged one last glance with your mother. For a fleeting moment, she looked as though she wished to say something.

Instead, she simply offered a small nod. "Very well."

You rose to your feet, the weathered floorboards creaking softly beneath your weight, and followed the servant toward the manor.

Behind you, the rain continued to fall. As though the heavens themselves mourned what was yet to come..

The familiar halls of the Kurogawa estate seemed quieter than usual as you followed the servant through the manor. The soft glow of paper lanterns danced against polished wooden floors, while the scent of burning incense lingered in the air.

At last, the servant slid open the doors to the council chamber.

You stepped inside. Ordinarily, the room would have been filled with advisors, generals, and retainers debating military strategy over sprawling maps.

Today...It was empty. Your father sat alone at the head of the long cedar table. He did not speak immediately.

His gaze remained fixed upon the maps before him, fingertips resting against the worn wood as though the weight of the war itself pressed upon his shoulders.

Only after a long moment did he lift his head to acknowledge your presence.

The years had begun to show upon his face. Fine lines framed tired eyes that had seen far too many difficult decisions. Yet despite his weariness, he remained every bit the lord your people depended upon.

"Daughter." His voice was calm.

"Come. Sit." He gestured toward the empty cushion beside him.

A knot tightened within your stomach. You could feel your palms beginning to dampen as countless possibilities raced through your mind. Had another village fallen? Had the Foot advanced farther south? Had someone been hurt?

Silently, you crossed the room and lowered yourself onto the cushion beside him. The silence stretched between you. Neither of you seemed eager to be the first to break it.

Finally, your father exhaled. "We met with the Hamato Clan in the early hours."

His eyes searched yours, as though gauging how much to reveal before continuing. "To discuss the course of this war."

You nodded quietly, waiting for him to continue.

"The Foot grow stronger with each passing season. Villages continue to fall. Trade routes have become increasingly dangerous, and our stores will not sustain another prolonged campaign."

His gaze drifted briefly toward the maps scattered across the table before returning to you.

"Neither our clan nor the Hamato can continue this conflict alone."

You listened in silence. Your father had never involved you in matters of war beyond what was necessary. If he had called you here himself...

Whatever came next concerned you.

"To the Hamato Clan, We proposed a means of strengthening both our houses." Your brows knit together ever so slightly.

"An alliance."

The word itself came as no surprise. Alliances between neighboring clans had become increasingly common as Saki's influence spread throughout the province.

"They accepted."

Another pause. "But not through soldiers."

You felt your pulse quicken. "Nor through land." Your father folded his hands before him.

"They proposed a union." Your thoughts raced ahead of his words.

A union...Was he referring to marriage? Your breath caught quietly in your throat. His expression softened.

"This was not a decision your mother and I arrived at lightly." He paused, as though hoping the next sentence might somehow become easier to speak.

"The Hamato Clan has offered the hand of their eldest son." Your eyes widened. The Hamato Clan. Stories of the clan had traveled farther than any merchant caravan.

Towering warriors clad in lacquered armor. Samurai who could cleave through entire battalions with blades no ordinary man could lift.

Some praised them as noble protectors. Others whispered another name.

Yōkai. Creatures not born of man, but of legend. Monsters that walked like men.

Your father drew a slow breath. "And in return, we have offered yours.."

The room seemed to shrink around you. The crackling brazier. The rain beyond the windows. Even your own heartbeat.

Everything faded beneath the weight of those five words.

"...You are to marry Hamato Leonardo." Silence settled over the council chamber once more.

Your lips parted, but for a moment no sound came. "The yōkai?" you breathed at last, disbelief sharpening your voice. "Father—"

Before you could continue, his fist struck the oak table with a force that made the lantern flame tremble.

"Enough." The single word rang through the room like a blade drawn from its sheath.

Your father's expression had hardened, the warmth of his earlier tone gone entirely.

"We understand what this means," he said sternly. "We understand the weight of it. But we have no choice."

The blood rushed hot beneath your skin. You rose so abruptly that your cushion skidded against the floorboards, the sharp scrape echoing in the chamber. You no longer cared if the movement was considered rude, or if it disturbed the stillness of the room.

A marriage. To one of the Hamato.To a yōkai.

Your hands curled at your sides as your chest tightened with a hundred objections all at once.

You hurried down the corridor, your footsteps echoing against the polished floorboards. The cool breeze drifting through the open entrance barely soothed the heat burning beneath your skin.

Your mother remained where you had left her, seated quietly along the engawa, watching the relentless downpour wash over the gardens.

She heard you approach. She simply didn't turn around.

"You're going to let me marry him?" Your voice trembled despite your best efforts to steady it. "Mother... there has to be another way."

The words came out more like a plea than a question. For a long while...

She said nothing. The rain filled the silence between you. Its steady rhythm drowned out every thought racing through your mind.

Finally, your mother let out a weary sigh. Her voice was barely louder than the rain itself.

"There truly isn't." You stared at her in disbelief.

"But he's..." The word caught in your throat. You couldn't bring yourself to say it aloud.

"...an honorable man," your mother finished softly, meeting your gaze without hesitation. Her voice never wavered.

"Your father has spoken with Lord Hamato for many years. The stories carried by frightened villagers are not always the truth."

She rose to her feet, smoothing the sleeves of her kimono before stepping beside you.

You searched her face for any sign that she was only saying what a mother ought to say. You found none. Only quiet certainty...

And immeasurable sorrow. Neither of you spoke again.

Together, you watched the rain fall over the estate. As though it, too, understood that by the time the skies cleared...

Nothing would ever be the same.

▬▬ι══════ﺤ

A/N: I hope you enjoyed this fic! This was definitely a fun one to write, but also a little intimidating since I used a lot of terms and concepts. I did my best to research and use them properly, but if there are any inaccuracies, please feel free to let me know! This is only the first chapter so it didn't really go too far.

This will be a small series, so if you'd like to be tagged in future parts, just let me know!

Thank you for reading <3

[playing-with-colors]

[gobelindoll]

im rereading project hail mary already dont judge

[applejuiceyjuice-art]

A scene I made for a fanmade rottmnt season 3 project based on storyboards by DaniDarkArts circa 2024

[zuvoo]

Pixeltello

[kaomojiloser]

drawing possibly one of the funniest moments in the book. chain… must chain……. quote below !!!!!

“Chain, chain, chain. If I ever see another chain in my life, it will be too soon. Ten kilometres of chain—each link just 5 centimetres long. That’s two hundred thousand links. Each one connected by hand or by claw. It worked out to each of us working eight hours per day for two weeks doing nothing but connecting links. I saw chain whenever I closed my eyes. I dreamed of chain every night. One of my dinner packets was spaghetti and all I could see were smooth, white chains instead of noodles.” Project Hail Mary: Chapter 19, pg. 308

[ohcosmo]

Today I found a leather turtle coin pouch at a garage sale

Look at his little tail

He was $5 and worth every nickel

he is very important to me

[jhaenyra]

　˚　˚̣̣ ᵕ̣̣̣̣̣̣ ❀ ᰷ ⎯⎯͟͟ you’re a vampire who’s hopelessly in love with raphael, and despite knowing your feelings can never truly work, he loves you just as deeply. unable to bear the thought of you starving or feeding from strangers, he quietly lets you drink from him every so often. it’s painful, risky, and something he’d never admit scares him —but for raph, offering you his blood is the purest way he knows how to say i love you | VAMPIRE READER X BAY!RAPH

the first time you confessed that his blood smelled… different, he immediately became suspicious.

“what the hell does that even mean?” he’d cross his arms, convinced you were joking.

when you quietly admitted you were struggling not to think about biting him, his face turned bright red before he barked at you to stay five feet away.

he spent the next hour pretending it didn’t bother him while secretly wondering why you specifically wanted his blood.

when he eventually learned that vampires don’t simply “choose another person” when they’re attached to someone, everything changed.

he hated the thought of you suffering because you refused to feed from strangers, and while donnie insisted there had to be another solution, raph made up his mind on his own.

one night he simply walked over, rolled up the sleeve on his forearm, looked away with burning cheeks, and muttered, “just… get it over with.”

he tenses every single time. every muscle in his body locks the moment your fangs touch his skin. his hands curl into fists, his jaw clenches, and he lets out a low grunt through gritted teeth.

not because he regrets it—but because it hurts, and he’s never been particularly good at hiding pain. even then, he never once tells you to stop before you’ve had enough.

despite acting tough, he watches your face afterward more than his own wound. if your skin regains some color, if your eyes lose that hungry look, if you seem healthier… that’s enough for him.

he’ll quietly wrap a bandage around his arm while pretending he doesn’t notice you looking guilty.

he’d absolutely tease you afterward. “that enough for ya, vampire?” he’ll smirk, trying to lighten the mood because he knows you’ll apologize at least five times.

inside, though, he’s oddly proud that he could help you in a way nobody else could.

leo isn’t thrilled about it. he’s worried about infections, blood loss, your self-control… basically everything.

raph argues with him constantly about it. “i know what i’m doin’.”

he doesn’t, not really, but he’d rather deal with leo’s lectures than watch you slowly weaken because you refuse to feed.

your biggest fear is accidentally taking too much. one night you’re so hungry that you force yourself to stop halfway through, shaking so badly you nearly cry.

before you can apologize, raph cups the side of your face with one huge hand. “look at me.” you do. “you stopped. you were in control.” hearing him say it so confidently helps quiet the panic in your head.

he’s ridiculously protective immediately after feeding. maybe it’s because he’s slightly weaker for a little while, or maybe it’s because he knows you’re emotionally exhausted afterward, but he becomes even more possessive than usual.

one arm around your shoulders, keeping you close while glaring at anyone who gets too near, silently daring them to say something.

he absolutely refuses to let anyone shame you for what you are. if someone calls you a monster, his temper explodes before yours ever can.

“she ain’t hurtin’ anybody.” his voice drops into that dangerous growl everyone recognizes. “she’s got more self-control than most humans i’ve met.”

over time, feeding becomes strangely intimate rather than frightening. instead of treating it like a burden, raph starts preparing for it.

he’ll sit somewhere quiet, remove the wraps from his forearm, take a steady breath, and nod toward you. no dramatic speeches. no hesitation. just complete trust.

for someone as guarded as raphael, that’s about the closest thing to saying i love you.

one evening you quietly ask him why he keeps doing this when it hurts every time. he shrugs at first, avoiding your eyes like the question annoys him.

after a long silence, he finally mutters, “…because i can’t fix what you are…but i can make sure you don’t gotta go through it alone.”

then, embarrassed by his own honesty, he immediately tells you to stop looking at him like that before he changes his mind. even though you both know he never would.

A/N: i could also do the opposite of this: raph being the vampire and reader being just human; raph taking reader’s blood because for him is the sweetest blood he ever smelled. would you guys want something like this?

[incorrect-tmnt2012-quotes]

Leo: You entered the dungeon and on the far side of the room, you see a door.

Mikey: Can I seduce the door?

Leo: No you cannot.

Casey: Can *I* seduce the door?

Leo: Also no.

Karai: Can I punch Casey?

Leo: *rolls dice* Uh, Casey you take 4 damage.

Casey: Well, I transform into a beaver.

Leo: You do that-

Casey: NOW can I seduce the door?

Leo: Still no.

Karai: I punch Casey again.

Leo: *rolls dice* 3 more damage.

Raph: Can I fight the door?

Leo: No!

Mona Lisa: I also would like to fight the door.

Leo: No one can fight the door!

Raph & Mona Lisa: WE FIGHT THE DOOR!

Leo: You lose!

Raph: I fight you!

Leo: Raph, talk a walk.

Shinigami: Is the door dead or alive?

Leo: It’s a DOOR!

Shinigami: Can I enslave its soul?

Leo: How would you– No!

Donnie: Can I build a better door?

Leo: Do you want to build a better door?

Donnie: I acquire lumber from the surrounding forest.

Leo: *rolls dice* Okay, you do that.

April: Is the door locked?

Leo: No, it isn’t.

April: I open the door.

Leo: You do so. Inside is one small treasure chest.

Mikey: I seduce the treasure chest.

Leo: NO!!

[remdonlings]

i like KH 3 and I like rottmnt

So what does that mean

I make designs

I haven't done Mikey and Raph

One day I will

I'm too lazy to colour

[lemellion]

i had twenty minutes and a dream

[ohcosmo]

Absolutely perfect

[angelpuns]

Wanted to make a comic about what Kid Leo has been up to during the competition :)

What do you get when you take a very traumatized, much older than he appears to be child and put him in a room with a bunch of alternate turtles? panic :)

Sorry for not being able to participate as much, this might end up being all I draw <3 We shall see :3

If Kid Leo moves on to the next round maybe I will draw more, but that depends on all of you ;)

Also ft. the Toddler Mutant Ninja Turtles au by @/mkthedingus since Leo is taking a nap with those guys :3

@tmntaucompetition

@mkthedingus

[crowstare]

First post of 2026 💜

[zorymochuu]

Love this trenddddddd and I love Donnie so much

My friends yumes and mine ✌️🤍

[scribbells]

Chapter 1 Denial: Part One

Just a normal day in the Hamato household.

Previous | Next

[the-lavender-clown]

Been wanting to draw rise, 2012, and my Donnie with a disco/80’s/whatever vibe for a HOT minute and finally got around to it!!

I’M SO HAPPY WITH HOW IT TURNED OUT!!!