art by @3vangel1ne_ on X, dividers by @priestboy <3
SYNOPSIS: You fail your exam. Badly. Luckily for you, the top student in your major offers to tutor you. Unfortunately (or fortunately?) for you, he brings his twin brother along.
PAIRINGS: Gojo Satoru x Reader, Nerdjo x Reader, Fratjo x Reader, Nerdjo x Reader x Fratjo
TAGS: JJK, Jujutsu Kaisen, JJK College!AU, Nerdjo, Fratjo, Gojoverse, Gojo twins, Author insert because I'm also a Computer Engineering Major, AO3 was down so I'm posting here
NOTES: Chapter 1/? (Will update more soon :p) & not proofread because I'm a bum
losin' all control when you get close, yeah
âIâll be distributing your exam papers.â
You heard the whole class groan. Being a Computer Science major is difficult. Being an Engineering major is just as hard. But when you mix the two? You have the one hell of a major youâre taking right now: Computer Engineering. Itâs no surprise students decide to shift term after term.
The figure with white hair, crooked glasses, and an oversized hoodie stood up from the front seat (and he was the only one in that row) as the professor beckoned him to help distribute half of the paper. Satoru Gojo.
Close with the professors.
But not so close with his peers.
âMake sure you return the paper at the end of the class. Itâll serve as your attendance,â your professor said, handing out the other half of the papers, with no reaction. Was that a good or a bad sign?
You sat on your chair, one leg shaking from anxiousness. Where do you even lookâ at Satoru or your professor? Why isnât this arranged alphabetically? Who has your paper right now? Did Satoru check your paper?
Your heart sank to your stomach as Satoruâs figure loomed over you, standing at 6â3; he could basically cover the light source above you. He stood right there, lingering a little too long in front of your desk, probably taking in your presence and the way you looked so small underneath him. The distance between you and him was insanely close, you could basically smell his perfume. Could see the way his hoodie shifted with even a small twitch. Could feel the heat radiating from his skin. Could hear him breathing. Could imagine his glasses falling down while youâ
What the fuck, since when did this nerd have some sex appeal?
A soft sigh escaped your lipsâ No. Youâre probably just anxious about the exam. Everyoneâs tense in class, and so were you. You did what you could but some part of you knew you flunked it. Yeah, all this nervousness is just coming from this subject and definitely not the way you were eye-to-eye with his abdomen.
He called out your name to check if he was looking at the right person (and to see the way your eyes locked with his when your head shot up). You gave him a curt nod, and he handed your paper to you, his fingers brushing lightly against yours. That small contact sent a shiver down your spine, and you were lucky to catch his reaction: him jolting and his face flushed red. At least you werenât the only one responsive to this⊠situation.
You were hesitant to flip the paper in front of you. Hell, you were even hesitant to take it from Satoru and just say that youâve already accepted your fate. But alas, you have to, or your mind wonât be at ease.
And so you did. You quickly flipped your paper, covering the upper right corner to check your score.
A soft, bitter and defeated laugh escaped from your lips. Not even two digits?
You saw Satoru glance at you when he heard your laugh with concern etched on his face.
Holy fuck, youâre doomed.
You wanted to crumple, tear, or even burn the paperâ until you saw a small blue note sticking on top of it on its lower corners.
âMessage me what time your classes end. Iâll meet you at the library after :) - Toruâ
Your eyebrows furrowed. Was this note really meant for you?
Your eyes searched for Satoruâs figure, only to see him settling on his seat in the front row. It was like your mind had telepathically communicated with him to look at you because he really did.
You showed him the note and gestured to point at yourself. âMe?â
He simply nodded and quickly turned his attention back to your professor. But you didnât fail to catch the faint hue on his cheeks and the way he folded ever so slightly after that interaction.
You took your phone out discreetly to send Satoru a message, but as you searched through your contacts to look for his name, you realized you donât have his phone number. You blinked. How the hell will you evenâ
Your fingers rushed to open your university E-mail and entered his name as the recipient. All the student emails had the same format, anyway, with an underscore separating the studentâs first and last name.
To: [email protected]
Subject: Regarding my class scheduleÂ
Hi, Satoru!
Iâm sending you an email instead of a text message since we donât have each otherâs numbers yet, haha. My classes end at 4:15 PM. See you :)Â
As you hit âSendâ, your mind immediately switched to creative mode and imagined being beside him in the library and listening to him talk about nerdy shit. Blah blah blah, Fourier Transforms, logic circuits, mesh analysis, Javascript⊠Youâd nod like you understood anyway.
But you donât know why youâre looking forward to itâ why heâs suddenly in your radar. You knew about his existence, of course. He is your majorâs top student, but you two never interacted as much as today, except for casual greetings whenever you enter the classroom and you see him alone in the front row, always in the front row, drowned in texts and formulas too advanced for your sophomore year.
Everyone would admit heâs handsome. His hair, which was as white as snow, made his piercing blue eyes pop. He stood tall, had a sharp jawline, and his lashes fluttered every time he blinked. You werenât sure about his build, though⊠All youâve ever seen him wear is his different variations of oversized Digimon hoodies and sweatpants. Typical.
But the reason why barely anyone talked to him was because heâs intimidating. Stoic. Reserved. Awkward.
Not that itâs something bad for you. You donât mind, really.
You werenât even listening to the class anymore. Your eyes kept on glancingâ or rather, staring, at Satoru, and he could probably feel your eyes on him with the way he was fidgeting with his pen and folded even more, pulling his hood on and its drawstrings to hide himself.
You were so eager to finally talk to him. Get to know him. Youâd be lying if you said your heart didnât flutter at the fact that he initiated to talk to you at the library.
But now, there you are, standing inside the discussion room, confused as fuck.
Satoru replied to your e-mail two hours after you sent it, saying that heâll book a discussion room at the library. He also attached his number at the end of his email. Those were the only details he provided you with.
You donât know if it was the lack of sleep, or the amount of times youâve hit your head on the table because of your dreadful score, but youâre seeing two Gojos. He didnât mention this?
One definitely the same guy you saw early this morning. The other? He had the same featuresâ white hair, blue eyes, only slightly taller than Satoru, but his build? Fucking ripped. His black compression shirt outlined all the ridges and hard planes on his body. Itâs like he has a major where he needs to do deadlifts as a midterm. His demeanor was a sharp contrast to your classmateâs; he was awfully smug and laid back.
You rubbed your eyes in confusion. Maybe one will go away or theyâll merge into one.
Nope. Still two Gojos in front of you. Â
The Gojo on your left, your classmate, sensed the confusion. He cleared his throat, his eyes refusing to look at yours, and his tone of voice was soft. âUm, sorry.. You were probably expecting only us two, but I found out that discussion rooms needed three people minimum in order to be booked. So⊠I asked my twin to come along. I wasnât able to tell you ahead of time, and I apologize.â
Twin? This dude has a fucking hot and ripped twin?
âAh..â You replied, as if your confusion subsided, but you merely nodded your head as you settled to sit across the two of them. âI see, and itâs alright. I never knew you had a twin.â
Satoruâs twin shifted in his seat, leaning towards you from across the table, a fake pout on his face. âHuh. My own brother doesnât talk about me? Thatâs sad.â
He earned a nudge from Satoru. âI donât⊠really talk about my personal life. Besides, I thought she knew about you. You're the president of the biggest frat in this university.â
âShe doesnât seem to be interested in that kinda stuff,â the other twin said, a small smile now plastered on his face as he held one hand out. How did he know that? âIâm Satoshi Gojo, by the way. Nice to meet you.â
You took his hand in yours and gently shook it. His hand gripped yours a little too tight, and his eyes were piercing into yours, like he was some hawk watching its prey, observing your every move.
âNice to meet you too, Satoshi,â you replied, pulling your hand away from his grip, trying not to let his stupid smirk get to you.
Satoru already knows Satoshi was brewing mischief in his head with the look he was giving you. He heaved a sigh and flicked his brotherâs forehead as a warning before turning to you.Â
âOw. Thatâs not niââ
âAnywayâŠâ Satoru cut him off and shot him a glare, and Satoshi quickly shut his mouth, leaning against the chair as he raised both his arms in defeat. It seems like Satoru acts a tad bit different when it comes to his brother. Is he the older one?
You adjusted your seat, pulling it closer to the table. âRight⊠um, why did you want to meet me here, Satoru?â
A thin line formed on his lips. He was trying to be careful with his next words. âItâs about yourââ
âHeâs saying you flunked that exam pretty bad.â
Satoshi said those words in such a calm and loose manner it kind of infuriated you. Like it was just another day and it was a normal occurrence. It wasnât for you, though. Youâve always hated failure.
But how did he know in the first place?
Warmth rushed to your cheeks, either out of embarrassment, or anger, or bothâ you donât know. You donât care. You just wanted to punch that carefree look on his face, your hands were already curled into a ball and ready to smack the shit out of him.Â
Until you saw the table jolt slightly and heard the frat twin groan in pain.
âThatâs the second timeââ
âMaybe itâs because you need to shut up.â
Satoshi scoffed, one arm hanging in the air as he placed it on the backrest. âYouâre acting all tough, lilâ bro. Tryna impress her?â
So Satoruâs younger⊠and somehow still the more rational one.
The tough facadeâ whether it was a facade or not, faltered from Satoruâs face. He was as red as the time you were staring at him in class, probably more, and that sight made your anger dissipate a bit.
âWhat the helâ heck are you even talking about?â Satoru mumbled, fiddling with the drawstrings of his hoodie again. He couldnât even say the word hell. Shaking his head and turning his attention fully to you, he spoke up, âPlease donât mind him, heâs very much a pain in the ass sometimes.â Satoshi rolled his eyes at that statement. âBut yes, this is about your recent exam results.â
You slumped in your seat, your head down, eyes fixed on your lap, and prepared for a lecture from Satoru, or worse, him telling you that the professor doesnât think youâll be able to pass the course.
âI helped check the papers,â Satoru said, fixing his clear, square glasses that were slipping from his nose. He brought out a ridiculous stack of notes, specifically for the Digital Signal Processing course, and placed them on top of the table. You felt your stomach churn just by looking at the front page of every stack of notes he had, dreading his next words.
He observed your reaction, he always did, and he couldnât help but stifle a soft laugh. âI figured youâd be disappointed with the result, so Iâm willing to tutor you with any course you need help with.â
Your head shot up at his words, a glimmer of hope in your eyes. You looked at Satoru like he was an angel sent from the heavens above, and god, did he look like one.
The discussion room the three of you were in had big windows that allowed you to see the view below. It also allowed the sunlight to shine directly on Satoruâs skin, as if he had a spotlight on him, and it highlighted his featuresâ his white yet slightly messy hair, his glasses that were sitting on his nosebridge, still slightly askew even with the number of times he tried to fix it, his long lashes casting shadows over his eyes, and, god, his plump lips. You donât know if you want to ask him for his lip care routine or if you want to know how it would feel to have your lips on his.
And Satoshi caught the way you looked at his brother. Of course he did.
But he didnât dare say anything. He just sat there, observing the growing chemistry between you and his little brother. Itâs not like heâs even slightly interested in you.
Or, thatâs what heâs been saying to convince himself.
âButâ but isnât this a specialized subject?â You asked Satoru, confused. âI thought your org doesnât offer tutoring sessions for specialized subjects?â That question made Satoru fall silent for a good few seconds. It was deafening.
âI-Iâ Uh, Iâm n-not doing this as some org-related stuff,â the nerd twin mumbled, his face as red as the whiteboard writings behind the twins. âIâm justâ I just learn better when Iâm teaching⊠s-someone.â
He just doesnât want to admit that he wants to spend time with you and hopefully know you better.
And Satoshi knows this. He could read his brother like an open book.
It made him snort and laugh, which turned both of your attention to him with an expression saying, âwhatâs so funny?â
He shook his head, his hand dismissing the two of you. âOh nothing, nothing. Just⊠continue with your tutoring session.â
And so the two of you did. Even with Satoruâs flustered expression.
âSo⊠letâs start with the fundamentals and conceptual stuff,â Satoru said, pulling his notes from the bottom of his stack of paper, his voice still soft and filled with awkwardness. âDo you know the difference between analog and digital signals?â
âOkay, then. Differentiate them,â he said, leaning against the backrest of the chair, fucking manspreading, his voice now stern and strict. His penâ wherever the fuck he pulled that out from, was now tapping his lower lip, and his head was slightly tilted to the side. What the fuck, he was literally all flustered just seconds ago?
First of all, you werenât aware that the tutoring starts right now. Second, with the way he was looking at you, it was like everything you knew was thrown out of the window.
You stammered. Like genuinely struggling to speak. âU-um.. Itâ Theyâreâ Analogâ Fuck.â
What the actual fuck is happening right now?
âBreathe, sweetheart,â you heard Satoshi tease, and you burned at his sudden endearment. âMy brother doesnât bite.â You gave him a glare, your cheeks still awfully red, before inhaling the air heavily, and then breathing it out.
Just focus, please. You basically begged yourself.
With a soft exhale, you explained what you knew. âAnalog signals are continuousâ continuous in time, while digital signals are discrete in time. Analog signals can take any values within a given time range. Digital signal values are usually represented with the values 1 or 0. From how I understand it, thatâs how digital signals are less susceptible to noise, because the values are only either 1 or 0, compared to analog signal valuesâŠâ
He gave you a curt nod. âGood, at least you know the concepts, even if itâs simplified. Now, whatâs the difference between signals and systems?â
Holy fuck, is this a hidden second part of your exam?
âOh my godâ okay, um⊠Signals carry information. Systems process those signals to produce output responses.â
âUnit step. System or Signal?â
âSysâ I mean, signal.â
âUnit impulse. System or Signal?â
He raised an eyebrow at your uncertain tone.
âImpulse response. System or Signal?â
âGood try, but no.â That made your heart sink. âAn impulse response is also a signal. It characterizes a system, since it is often used in convolution. Itâs the output of a Linear-Time Invariant system when the input is a unit impulse.â
You took a mental note of what he said. âImpulse response is a signalâ got it.â
As the two of you were exchanging questions and answers, answering word problems, Satoshi sat there, quiet. Still observing your interaction with his brother. Observing your every move. Taking note of how your hair fell down to your shoulders whenever you shifted your seat. Of how your eyebrows furrowed whenever you encountered a difficult problem. How your tongue poked out as you wrote your solution down. How your lips formed a small pout whenever Satoru said you got something wrong.
Heâd shift majors if it meant to see you like that everyday.
âYou always forget how correlation works,â Satoru pointed out on your solution with his red pen, giving your answer a big circle. âConvolution and correlation are essentially the same, but the main difference is that convolution needs to flip one signal.â
You melted in your seat. Your brain was already fried with all the questions and problems Satoru was throwing at you, youâre mixing up the processes in solving the problems.
âYou applied the table shortcut we discussed, and you know how it works, but you still flipped one of the signals. Correlation doesnât need the flipping.â
âMy god⊠Iâm gonna end up flipping another thing,â you muttered, gripping the table. âMy brain is so fried.â
And just as Satoru was about to hand you another problem, Satoshiâs voice echoed through the walls. âAlright, nerds. Time out.â
Nerds? Your heads whipped to Satoshi. Satoru had no reaction on his face, just looking at his brother with the âwhat now?â look. Oh, to be as smart and nerdy as SatoruâŠ
Satoshi raised his phone up to show the time. 7:23 PM. âItâs getting late.â
Being with Satoru increases your productivity, it seems.
You stretched your arms, yawning in your seat. You donât want to leave yet, but your body was slowly betraying you. Your eyes were closing shut while you were solving the problems earlier. âThat late already? Gosh, I didnât even realize⊠I was too focused on that graphing problem.â
âMmm⊠Well, you did a great job today,â Satoru praised, a small hue on his ears, as he took your paper. 39/100. Thatâs still an improvement, no?
His blue eyes looked at you once again after what seemed like an eternity ever since the last time he did. âYouâre improving. By the end of this week, you will be able to master the topics covered in our first exam. For the next two weeks, letâs cover the topics for the second exam. Weâll have enough time.â
Determination and excitement rushed through your veinsâ is it because youâll be seeing Satoru more often now, or is it because you actually have hope to pass this hellish course?
Youâre pretty sure itâs the first one. But hey, at least you have motivation now!
âIf everything goes well this week, feel free to come to my party on Saturday,â Satoshi butted in, and your eyes widened at his invitation. âYâknow⊠as a reward? Let loose after solving whatever the fuck systems are?â
Satoruâs eyes were now filled with concern as he looked at you. âDo you drink?â
âI do,â you responded, fiddling with your pen. âJust never had the time recently. I would love to go, though. Especially after that⊠exam.â
An uncomfortable feeling settled in Satoruâs stomach. Jealousy? Protectiveness? Possessiveness? Heâs not entirely sure, but that feeling made him blurt his next words without even thinking. âWell, thatâs up for me to decide.â
âWoaaaah,â Satoshi exclaimed in surprise, taken aback by the sudden boldness his brother was exhibiting. It amused him, very much so, with the way you affected Satoru. âEasy there, lilâ bro. Possessive of her already? Itâs not like Iâm planning to steal herâ well, at least not yet.âÂ
Aaaaand the stern and strict Satoru was now long gone. Heâs back to his shy, stammering self, shaking his head vigorously as if you showed him his biggest nightmare. âWhat the heck are you talking aboutâ T-thatâs not what I meant!â He shrieked, his hands forming a big âXâ. âIf she significantly improves by the end of the week, then of course she could go. As her tutor, I want to ensure sheâs doing well academically and prioritizes her academicsâŠâ
âBut not allowing her to relax is a bad tutoring method, no?â Satoshiâs shit-eating grin made Satoru lose his shit even more. âBesides, youâre invited to the party too. So, why restrict her?â
âYou know I donât drink alcohol.â
âTime to try it, then.â
âBut I donât want to.â
âBut sheâll be thereââ
The twins looked at you in an instant.
âSatoruâs right, I need to set my priorities first,â you muttered, a bit of disappointment in your tone. You really want to go, but you know you have priorities; you want to pass. And you donât want to erase all the effort Satoruâs giving you.
Satoru looked like he just won the lottery. Satoshi was giving you a loud âbooooo.â
Your eyes then shifted to Satoshi. âBut I didnât say no. As long as I improve by FridayâŠâ trailing, you looked at Satoru this time again, and he swears you looked like a lost puppy. âItâll be Satoruâs call, whether Iâll attend the party or not.â
âDeal,â the twins said in unison. Finally, no more bickering.
You swung your bag to your shoulder. âThen itâs settled.â
Before you could even step out of the discussion room, you felt a hand grabbing your wrist.
âU-um⊠message me once you get home,â Satoru muttered, mostly to himself, but he was loud enough for you to hear. He didnât even look at you when you said that; he just fixed his glasses for the nth time today.
âI will, donât worry,â you reassured him, and even then, his hand hesitated a little to let go of you. âGet home safe, you two.â
When the door clicked shut behind you when you left the room, that was the only time Satoru was able to breathe properly. And neither of the twins decided to speak for a good few minutesâ the only thing heard in the room was the sound of Satoru shuffling as he packed his stuff.
Until Satoshi decided to break the silence. âWell that was interesting.â
Satoru didnât bother to look at his brother. âHow so?â
âYou were panicking. I think she knows.â
âShut up. I was just tutoring her.â
âYeah, and no tutor stammers and feels flustered around their tutees.â
Satoru ignored him, focusing on organizing his bag. Whatâs his deal? Why does he even care?
Satoshiâs eyes were still staring at where you were seated, then at the door where you left.
That made Satoru stop his movements, his bag zipped only halfway. His body was tense, and he didnât dare to look at his brother.
Satoshi enjoyed seeing him lose his mind.
âRelaaaaax,â Satoshi said, lazily, crossing his arms. âIâm not planning to steal her.â
Satoru heaved out a sigh.
Satoru shot him a glare sharp enough to cut glass, and Satoshi could only laugh.
âMan,â he said, pushing himself off the table, âSaturdayâs gonna be so fun.â
