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Evil Twin? Evil Twin.
[Toji x Reader x Sukuna]
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II.
“Well, well, well…look at you.” Gojo said with a grin. “A big fella, huh? Bro, you’re huuuge! Like if you were any bigger, we could live inside you. Like a house.”
Sukuna’s eyebrow twitched. His muscles protesting against the too-small school desk, posture relaxed but eyes cold. Not one word left his mouth.
Suguru sensed immediately what Gojo clearly didn’t. Sukuna did not like him. At all. But Suguru tried to smooth things over and cleared his throat. “So…you switched schools in your last year? That must’ve been tough. New teachers, new classmates.” he said in that calm, dependable older-brother tone. “Wasn’t it hard, transferring this late?”
Sukuna slowly shifted his gaze toward Suguru. Not a glare. Not an expression. Just empty, disinterested, like he was looking at a stranger asking questions he didn’t need to answer.
Suguru felt his own eyebrow twitch.
“So uh…why’d you move? A family thing? Or…” he hesitated, trying not to pry too deeply. Gojo threw an arm around Sukuna’s chair like they were buddies already. “Did you get in trouble? Did you—kill somebody? We won’t snitch. We'll probably tell, depends on your bounty.”
Sukuna returned his stare at Gojo, eyes lowering from Gojo’s face to his hand on the chair. A warning. A silent one. In a deep, quiet, unbothered voice. “I might have.”
Gojo yanked his arm back like it was burned. “GEEZ! Aren’t you a little serious?!”
Suguru pinched the bridge of his nose.
Sukuna leaned back in his chair, done with the conversation, eyes drifting forward.
Suguru sighed, already bracing himself to carry the team cause the groups chemistry is going to be a nightmare.
Gojo, lounging in his chair, sunglasses perched on his head, feet resting on the edge of the desk, radiating confidence and chaos.
Sukuna sat across from him, still and silent but his eyes were fixed on the classroom door.
And without a clue it slid open revealing Kenjaku who strolled in first, slouched, hands in his pockets, followed by Mahito. The faint smell of cigarettes trailing behind them and then Toji appeared, quiet, composed. He shut the door behind him, his presence shifting the room’s energy, drawing eyes even without effort.
“Well, I’m glad you could join us this late Mr. Geto, Mahito and Fushigiro.” Professor Kimura said, his voice holding the precise balance between annoyance and authority. “I won’t repeat myself, so ask your batchmates what they’re working on today.” another set of papers circulated, finally reaching Mahito, who glanced over at Gojo.
“What’s all the fuss about?” Mahito asked asked sat on the chair behind him.
Gojo leaned back lazily. “It’s a thesis. Don’t worry, just survive it. No one’s dying today.”
Meanwhile, Toji quietly made his way to the group but the moment his eyes flicked across the room, they froze. Something or rather someone caught his attention, a flash of color that didn’t belong there. When he looked properly, his expression shifted. Eyes wide, a flicker of disbelief, almost fear.
A nightmare from the past seemed to have manifested right in front of him.
Sukuna wasn’t looking at him, at least, that’s what it seemed but every instinct screamed that he was aware. He shifted his posture, turned his head just slightly, and let his eyes settle on Toji. A slow, deliberate smirk curved his lips. It wasn’t friendly. It wasn’t playful. It was calculated.
Slowly, deliberately, shifted his head, turning just enough to face Toji. His smirk wasn’t wide. It wasn’t friendly. It was controlled. Calculated.
A predator showing its prey exactly what it wanted them to see.
Toji felt it instantly. That familiar weight, the silent challenge, the quiet threat wrapped in confidence. He knows the chaos he brought in his wake.
Time seemed to slow as their gazes locked, the room around them fading into a blur of whispers and shifting papers.
Sukuna’s eyes drilled into him, cool and unflinching, as if daring Toji to make a move, to react. Toji’s usual calm faltered for just a heartbeat, his instincts screaming at him that this was a game neither of them would play lightly.
Kenjaku dropped onto the seat next to his twin with a casual. “Yo...”
Suguru shot him a glare sharp enough to cut glass. “You missed two classes. Two, Kenjaku. Do you want a diploma or an obituary?”
Kenjaku didn’t even blink. “Drop it.”
“No.” Suguru snapped. “Because I—”
Kenjaku shoved a hand on his face, pushing him aside. “I said…drop it.”
Suguru huffed, irritated, brushing his hand off his face. As he turned away, his eyes caught Toji who was stiff as a statue, staring straight at Sukuna like he was watching a ghost crawl out of a grave.
It was such an intense, silent standoff that Suguru’s brows pinched together. The tension between them was palpable. “…Do you two… know each other?” he asked carefully.
And instantly both Toji and Sukuna answered “No.” Same tone. Same speed. Same suspicious flatness. Half the row turned to stare.
Suguru’s eyes widened. What the hell was that? 💬
Even Gojo paused mid-stretch, blinking. Then a slow grin spread across his face. “Hold up.” He leaned forward, eyes sparkling with chaos. “You two look kinda alike. Not the faces—your muscles I mean. Same vibe.” he started humming as if he was trying to convey a bright idea and then clapped once before standing up. “Oi! Let's do Arm wrestling! Who wants to place bets? I got 500 yen on—”
Suguru yanked him back down by the collar so fast Gojo nearly bit his tongue.
The class started whispering. Toji finally tore his eyes away from Sukuna, jaw locked. Sukuna smirked and absolutely knew he had gotten under Toji’s skin.
And the professor, blissfully unaware of the tension rolling off every desk, began lecturing as if this were a normal class.
Meanwhile You and Mai wandered into the school’s tiny convenience store, the kind that squeezed between the science wing and the courtyard like an afterthought.
The aisles were narrow, shelves lined with snacks you’d memorized after two weeks of panic-buying breakfast.
Mai crouched to inspect a row of onigiri. “Ugh, why is the mentaiko always out…”
You were reaching for a melon bread when a voice startled you.
“Hey!!”
Mai straightened immediately, eyes lighting up.
You turned and saw her a girl with long white hair, braided in a thick strand that draped over her face while the rest flowed down her back with two other girls trailed behind her like loyal satellites.
“I’m so glad you’re still here!” the white-haired girl beamed, grabbing Mai’s hand like they hadn’t seen each other in years.
Mai cheered right back. “Mei Mei! I'm so glad to see you! I wanna introduce you to someone.” Mai tugged you forward and pointed between you two proudly. “This is her! The friend I told you about. She’s a sophomore. And this—” she gestured at the tall senior “—is Mei Mei senpai, we met when I was a freshman.”
You bowed quickly, respectful. “Nice to meet you, senpai.”
Mei Mei smiled at you bright, almost too bright. “Oh, right. The transfer student. You’re the Geto brother's sister, right?”
You nodded. “Yes.”
“Aww, that’s adorable that youre not a twin.” she cooed, as if you were a lost kitten someone brought home. “I’m glad you befriended Mai. That means we’re gonna be good friends too!”
Before you could respond, she grabbed your hands and started bouncing lightly with Mai.
Mai bounced happily with her, giggling but your body didn’t follow. You’d noticed in the hand she held you the color of Mei Mei’s nails and the exact cut of her skirt.
Something about them nagged at you that was too familiar, in a way you couldn’t quite name.
Mei Mei noticed you weren’t bouncing along. Her smile didn’t drop but her eyes sharpened just for a second. A flash of something cold. Assessing. Annoyed.
You didn’t catch it but you felt the aura she was giving was weird.
Outside, you could already hear themnthe faint shouts and laughter from track and field practice. Your cue to leave that uncomfortable vibe behind.
You gave her a polite tug so your hand slipped from hers. “Ah—sorry, I just remembered I have to be somewhere. It was nice meeting you, Mei Mei-senpai.”
She hummed, expression unreadable again. “You too.”
“Mai, I’ll text you. I need to give something to my brothers.”
“O-okay!” Mai called after you.
You bowed again, then turned toward the fridges. You grabbed the brand of energy drink your brothers inhaled like oxygen, scanned it quickly and paid.
You reached the track field and instantly felt the wave of noise. Shouting, laughter, sneakers pounding the dirt. Almost all the bleachers were packed with students lounging, gossiping and admiring the seniors.
The only quiet spot was where the PE teacher sat under the shade with a few students in front of him stretching half-heartedly.
The whistle blew and it cut through the noise.
The seniors immediately launched into a jog around the track, some sincere, some dragging their feet dramatically. You scanned the moving sea of uniforms until you spotted Suguru and Kenjaku, jogging side by side at the very front, shoulders brushing every few seconds like they were already competing without speaking. Their pace was fast enough to show off.
Farther back, you spotted Gojo, jogging while chatting animatedly with Nanami, who looked like he regretted every life decision that brought him here.
And at the very back…Mahito, of course, walking while casually talking with a group of girls who seemed one giggle away from tripping.
Mahito spotted you first. He waved brightly, even though he wasn’t jogging at all.
You waved back, then headed toward the PE teacher.
“Y/N-chan.” he cooed, smiling before you even reached him.
You bowed politely and handed him the cold drink. “For you, sensei.”
He accepted it with both hands like a sacred offering. “Always so kind to your brothers and to me. I hope they treat you just as well.”
“They do.” you assured him but barely finished your sentence when “One your left!”
A thunder of footsteps slammed behind you before you could even turn. Suddenly Kenjaku’s sweaty arms wrapped around your shoulders in a headlock.
“EW—Ken, SERIOUSLY?! I can smell your armpits!” you gagged, trying to push him off.
He did not let go. In fact, he squeezed you tighter. Then he spotted the plastic bag dangling from your wrist. “Aw! You bought us energy drinks again?” he sang, immediately hugging you harder and smashing your face into his sweaty chest. “You’re so sweet!”
“KEN—stop! You’re gross!!” you whined, trying to squirm free.
Suguru arrived a second later, slightly out of breath from jogging. He shoved his twin by the shoulder which unfortunately shoved you too but Ken’s arm locked around you kept you from face-planting.
“HEY!” Ken barked. “I’m holding Y/N!”
Suguru blinked, surprised. “…My bad.” Then he glanced at you, softened, and smiled as if none of this was happening. “Hi, Angel~” Suguru greeted you sweetly.
You handed each of your brothers their favorite energy drink, Suguru taking his with a pat on your head while Kenjaku ripped his open like he’d been deprived for years.
As always, you glanced over the field just a habit, really. Looking for one specific person you refused to admit you were looking for.
No Toji. Not at the bleachers. Not on the field. Not jogging. Not lounging like he usually did after showing off in PE. He always exercised. He lived for that crap.
So why wasn’t he here?
You frowned, scanning again as if your eyes might’ve missed him but nothing.
Just noise, sweat, sunlight, and seniors pretending they weren’t dying from running.
“Looking for someone?” Suguru teased under his breath.
“No.” you answered too fast.
Suguru raised a brow but he let it go.
Meanwhile somewhere in the school. A quiet hallway hidden behind the fire exit. The air heavy and still with two silhouettes stood facing each other.
Toji, broad shoulders rising and falling with restrained irritation, back leaning against the wall, hands in his pockets.
Sukuna, just as tall, arms crossed, expression unreadable except for the sharpness in his eyes.
Neither spoke at first.
Toji’s jaw twitched.
Sukuna’s smirk was lazy, deliberate.
Finally, Toji exhaled sharply and broke the silence. “...You really went all the way here for me?”
Sukuna scoffed. “What are brothers for?”
A muscle in Toji’s cheek jumped. “Cut the shit. What do you want this time?”
Sukuna tilted his head, gaze running over Toji like he was studying a puzzle he’d solved long ago. “You make it sound like I’m the one who always takes.”
Toji scoffs “You are the one who always takes.”
“And you...” Sukuna countered quietly “...are the one who always ruins things.”
Toji didn’t deny it. In fact he hid a smile. A slow, crooked thing curling at the corner of his mouth.
Like he enjoyed the memory he’d ruined.
Like he liked knowing it still bothered Sukuna.
“So…” Toji tilted his head, eyes narrowing with a predator’s ease. “You’re here to ruin things for me?”
Sukuna lifted a shoulder, playing innocent in the most infuriating way possible. His lips pulled into that small, devil-born smirk he did when he was lying on purpose. “Now why would I do that?”
Toji huffed a laugh. “Do you hear yourself?”
“I just missed you.” Sukuna said, voice smooth too smooth, like silk dragged over a knife. “It’s been years since we last saw each other.”
Toji’s eyes flickered. “Yeah.” he muttered. “It has been.”
Sukuna stepped back just enough for a breath of space but his gaze stayed locked with Toji’s.
“Ever since we left that…” He paused, choosing a word that could meant it all the same but he couldn't think of a proper description. “—that place.”
Toji’s smile faded. For a moment, the hallway felt colder. Their past sat between them like a loaded gun neither wanted to pick up first. At the mention of that place, Sukuna’s smirk thinned.
His eyes dropped just for a second. A flicker of something raw, ugly, unwelcome. Memories he’d shoved down for years shoved themselves back up his throat.
Toji recognized it instantly because the same thing hit him too. A brief, violent flash behind his eyes, the smell of disinfectant, the cold metal beds, the whispers in the dark, the sound of someone crying and trying not to.
Their gazes met. Two grown men, both trying to pretend they didn’t still carry the ghosts of that place on their backs. And for one strange, twisted moment
They understood each other completely.
They both let out a small laugh, not the warm kind. Not the easy kind. A dark, bitter chuckle shared only by people who crawled out of the same hell and learned to bite before being bitten.
Toji leaned in and jabbed Sukuna’s shoulder, not lightly either—the kind of jab only someone who grew up fighting you for scraps could deliver. “Still dramatic as ever.” Toji muttered.
Sukuna snorted, rolling his eyes before answering the only way he knew how. He jabbed Toji back, harder.
A sharp thud echoed against the stairwell wall sounding two mountains colliding.
Toji’s grin widened, feral and boyish all at once. “Oh, you wanna play that way?”
Before Sukuna could react, Toji’s hand shot out, grabbing him by the back of the neck in a rough, familiar grip and dragging him forward.
Not hostile. Not gentle. Just… them.
Toji laughed under his breath and messed up Sukuna’s hair, fingers digging in like he used to when they were younger and fighting over beds.
Sukuna’s face twisted in irritation. He shoved Toji off with a strong arm, adjusting his hair like Toji had personally insulted his entire bloodline. “Fuck off.” Sukuna grumbled, voice low and sharp, already turning toward the exit.
He pushed the stairwell door open and stepped out into the hallway, broad shoulders tense, jaw tight.
Toji followed a second later, hands in his pockets, smirk still sitting on his lips, like he had just won a game only the two of them knew existed.
When Sukuna and Toji stepped out, they didn’t walk beside each other. They didn’t look at each other. They didn’t acknowledge a damn thing.
They simply split with Sukuna turning left down the corridor and Toji turning right like two strangers who just happened to exit the same door.
The final bell rang. Students poured out of classrooms like a wave with some dragging their feet, some laughing loudly and some sprinting for the gate like they were escaping prison.
The warm orange glow of sunset spilled through the hallways, painting the courtyard in gold. Brooms clacked as a few volunteers cleaned, the fountain in the center yard catching the sunlight in ripples of pink and amber.
You slipped through the crowd with your bag slung over your shoulder, heading straight to the parking lot.
Your brothers were already there. Gojo was half-inside the car window, legs hanging out like a bored cat.
Mahito was sitting on the trunk scrolling through his phone.
Kenjaku leaned against the driver’s side, smoking his last cigarette of the day.
Suguru spotted you first and waved.
Kenjaku immediately flicked his cigarette to the ground and stepped on it, putting out the ember like he always did when you came around. “Let’s go.” he said, already sliding into the driver’s seat.
Suguru opened the door for you, resting a gentle, protective hand on your head as you climbed in.
You shuffled across the seat, landing beside Gojo who had his feet kicked up on the dash like he lived there.
“I’m starving...” you groaned, slumping back. “What are we having for dinner?”
Gojo perked up. “Is Suguru cooking tonight?”
“Nope.” Suguru replied immediately, buckling himself in. “Not after that jogging class. My legs are dead.”
“So we’re getting take-out?” Mahito cheered, already leaning forward. “Woohooo!”
You laughed, shaking your head.
Kenjaku checked the mirrors, one hand on the wheel then smoothly pulled out of the parking spot. The car rolled out of the school grounds, the sun dipping low behind the gates.
The car rolled to a stop at the red light. A group of students crossed the street, laughing, uniforms swaying in the evening breeze and then the low, rumbling growl of an engine slid up beside Suguru’s window.
Black. Sleek. Loud.
Suguru didn’t even have to look. “Ugh. Great…” he muttered. You turned your head to see but Suguru’s hand came flying up, covering your eyes. “Oh no you don’t.”
“Suguru, stop!” you whined, laughing as you tried peeling his hand off.
Mahito, meanwhile, hung his arm out the window, hand lifted.
Toji slapped it in a passing high-five without even turning his head, completely focused, his motorcycle purring like a predator waiting to strike.
Then another engine pulled up on Gojo’s side.
Red. Like blood. Aggressive, glossy, vibrating the air.
Gojo jerked awake from his nap. “What the f—OHHH damn, that’s a pretty color.” he said, hands pressed against the window like a kid at a candy store.
Everyone turned.
The rider was massive, shoulders nearly broader than his bike. A full red helmet hid his face but his posture, his muscles, his aura.
Suguru immediately sat up straighter. “…Is that—?”
Sukuna was staring directly at Toji with his helmet on.
Toji, jaw ticking, stared right back.
Sukuna gave a sharp, taunting throttle of his engine. A challenge.
Toji’s smirk spread slow and dangerous. He rolled his wrist, challenge accepted.
They both glanced at the stoplight. Yellow.
Your eyes widened. “Uh—we’re not part of this… right?”
Kenjaku’s hand tightened slowly on the gear stick. “We are now.”
Suguru whipped toward him. “KENJAKU, DON’T—!”
Too late.
GREEN.
Sukuna’s bike erupted forward, front wheel lifting off the ground for half a second.
Toji shot ahead a heartbeat later, his black bike slicing through air like a bullet.
Kenjaku floored the gas.
You and Suguru screamed in sync as the car lunged forward, tires screeching.
“WHOOOHOOO!!” Mahito and Gojo yelled from the back, arms flailing like idiots on a roller coaster.
The world blurred.
But it wasn't long before Kenjaku had to slam on the brakes. The car screeched as the world jerked forward, the roar of Sukuna and Toji’s bikes disappearing down the road. The smell hit first, Suguru coughing hard before gagging again.
“KENJAKU!” Gojo barked from the back seat, legs tangled with Mahito. “Warn us next time—”
“I didn’t stop for you.” Kenjaku snapped, already pulling into a small roadside car cleaning station. “Suguru is messing up my car!”
The moment the car halted, Suguru leaned out the door and hurled again, knuckles white on the seat. You were instantly beside him, rubbing circles on his back.
“There, there, onii-chan…” you murmured, holding his hair up as he heaved, shoulders trembling.
Mahito stepped out, stretched, completely unbothered. “Man, that was AWESOME. We should do that again!”
“Absolutely no-” Suguru choked out before dry-heaving again.
Mahito hopped out with him, bouncing on his heels. “Well you two have fun with the cleaning. Gojo, I smell takoyaki.” His eyes sparkled with mischief and hunger.
“Bet.” Gojo shoved his hands into his pockets and the two slipped away toward the nearest food stalls like delinquents hunting snacks.
Kenjaku, sighing like the exhausted single father of four delinquents, popped the trunk, grabbed the hose from the washing station and started spraying the entire passenger area.
The blast of water hit the seats with force.
“K—Ken!” you yelped, holding Suguru upright. “Warn us before you spray!”
“It needs disinfecting.” he said calmly, water splashing everywhere. “The smell is going to haunt this car for a century.” he kept hosing down the interior like he was washing away a crime scene.
Suguru groaned, face paling more. “Please… stop talking about smells…”
The apartment smelled of takeout as Mahito and Gojo shuffled in, bags full of food in their hands. The door had been left slightly ajar and a quick glance at the neat row of shoes by the entrance told everyone Toji was home.
You were the first to step inside and that was when you saw him. Toji had just stepped out of the bathroom, a towel draped over his broad shoulders, sweatpants clinging to his hips. He was wiping his damp hair back, and the way he leaned casually against the wall made your stomach do flips.
Your eyes met instantly and you felt your cheeks heat up.
Toji caught it, the corner of his lips tugging into a small, knowing smirk.
“Uh—excuse me, decency!” Suguru’s voice cut through, his hands shooting out to cover your eyes as he dragged you up the stairs ahd you chuckled letting him.
Toji chuckled under his breath, shaking his head.
You struggled a little but let Suguru guide you, the blush still hot on your face. Suguru opened your door for you, giving you a light nudge inside.
“She should know what a healthy man looks like.” Toji called downstairs, following close behind with Mahito, who was busy balancing the takeout boxes.
“A healthy manwhore.” Kenjaku muttered, peeling off his shoes and jumping over the couch, immediately grabbing the remote.
“Hey, did you see the Hawks’ game last night?” Gojo called out and sat on one of the single seaters. “They absolutely demolished the Lakers in the fourth quarter!”
Kenjaku let's go of the remote and saw the ball next to his feet and held it “Demolished? Man, more like they got lucky! I’ve been watching the stats, they barely kept up with the turnovers.”
Gojo laughed, leaning against his seat “Barely? Please, you’re just mad because Trae Young is faster than your ass ever will be!”
“Fast? You mean reckless.” Kenjaku tossed the ball up once before catching it. “Speed without control doesn’t mean shit in the paint.”
Meanwhile, Mahito was spreading out the food on the kitchen table like a general arranging his troops.
Toji helped beside him, still smirking at the thought of you.
The apartment was alive with chatter. Everyone had migrated to the living room after dinner, lounging in a huddle.
Mahito had already dozed off on one of the single-seaters next to Gojo, who was fixated on the basketball game with Kenjaku, exchanging running commentary. Toji was sprawled on the floor atop a beanbag, looking effortlessly relaxed, while you perched on the sofa next to Kenjaku, Suguru resting his head in your lap. Both of you were busy scrolling on your phones.
You barely noticed the others when a message from Mai lit up your screen. She’d sent a photo of a guy with striking pink hair and a tattooed face.
[ OMG, so cute!! New senior, already causing a stir in the school chat!!? 💬
“Onichan, you know this guy?” you asked, tilting your phone toward Suguru.
He leaned over casually, glancing at the screen. “Yeah, that’s a transfer student. Sukuna, I think. Why?"
Toji’s ears perked at the mention of the name.
“Mai sent it.” you muttered, taking your phone back. “Apparently he’s already popular in the group chat.”
“Mai is such a gossiper” Suguru warned. “You should be careful around her.”
You clicked your tongue in irritation. “Judging my friend, huh?” you teased, deliberately wiggling your legs to annoy him.
Suguru’s brow furrowed and reached down to hold them still, but you kept kicking his hands away. “Y/N! Seriously, I’m already comfortable!” he groaned.
“Not when you’re judging my friend!” you shot back, grinning.
Suguru’s frustration melted into a chuckle as he grabbed your legs, pulling you down so you were lying fully on the sofa. He started tickling you mercilessly, and you erupted in laughter, squirming and defending yourself as best you could.
Toji observed quietly from the beanbag, studying the scene with an unreadable expression. Gojo, on the other hand, leaned back with a smug smile, watching as if he were the one being tickled.
Kenjaku glanced over, touched but hesitant to intervene, clearly uncomfortable with open displays of affection. “Quiet! I can’t hear the game!” Kenjaku scolded without looking at the chaos beside him.
Suguru paused, letting you catch your breath and you instinctively grabbed the nearest pillow, wanting to hit Suguru with it but in the process, the pillow slipped from your hands and flew straight at Kenjaku. You gasped.
Suguru burst into laughter. “It was Y/N!” he yelled, still chuckling.
Kenjaku groaned, holding the pillow. Seeing an opening, he subtly crouched, hands ready, as if to join in. Suguru, ever the protective brother was suddenly on the mischief side and grabbed your hands to keep you from struggling. You were laughing and squealing, half-distracted by Kenjaku creeping closer and finally tickles you.
It was a sight for sore eyes. Chaotic, Warm and impossibly intimate.
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