ʏᴀɴᴅᴇʀᴇ ᴛᴀᴇʜᴜɴ sᴇᴏɴɢ x ʀᴇᴀᴅᴇʀ
yandere taehun who you met originally through school, simply when you were sleepy, as always.
The air inside the classroom was loud, filled with chaos, and the humid heat only made everything feel heavier. You weren’t exactly new to this school—but you might as well have been with the way you minded your own business. You liked silence, naps, and peace.
Too bad you were enrolled at a school with one of the most short-tempered guys in the district.
“Hey, you beat me in the arcade once. You think you're better than me? How about you give me your expensive jacket to make up for it, huh? How does that sound?"
You opened one bleary eye from your spot on the desk, cheek smushed against your hoodie sleeve. Just outside the classroom in the hallway stood a tall guy—tall like a brick wall—with shaggy brown hair and a temper written all over his clenched fists. His voice shook the walls, barking at some poor kid who looked two seconds from bursting into tears.
Taehun Seong, the infamous bully at your school who used taekwondo as an excuse to beat people up.
You'd heard of him in whispers, something about breaking a dude’s ribs because he stepped on his shoe, or using a back kick on someone because they didn’t apologize fast enough.
But right now, none of that registered. All you knew was: He. Was. Loud.
You groaned, barely sitting up, rubbing your eyes as the classroom froze in tension.
“can you shut up?” you muttered, voice hoarse with sleep. “You’re so damn loud...”
The air stilled and a second later, the classroom door slammed open.
You blinked blearily as a looming figure blocked the light above you.
You looked up.
He looked down.
“…The hell did you just say?” Taehun’s voice was low now—dangerous, sharp. His teeth were grit, his brow twitching, vape in his hand (the bitch was an addict)
You blinked again. “I said shut up."
Taehun’s eye twitched harder.
He stepped even closer, standing at your desk like a shadow ready to pounce. “You’ve got guts. Big mouth for someone with eyebags like a damn raccoon, always lazing around.”
You raised an eyebrow, not scared, but not exactly trying to make an enemy either. You weren't looking for problems—but your mouth apparently didn’t care.
He reached back slightly, maybe about to grab you by the collar or slap your desk off the floor. His hand flexed.
But then—he paused.
He really looked at you. The groggy expression, the dull blink in your eyes, the way your hair was slightly messed up from laying down. You weren’t defiant like someone trying to challenge him.
You were just… tired
“…Huh?” he muttered again, expression slightly warping into confusion. Then something shifted in his gaze—something a little amused, a little annoyed, a lot interested.
“Eh? Hey… you got 500 won?”
As he waited for a reply, he realized that your dumbass was already asleep, mid convo.
Your head was laid down, rubbing your cheek against your sleeve and your eyes slid shut.
That should have gotten you killed.
You were basically asking to get your head slammed into the table.
His hand actually twitched in the air, hovering over your shoulder—like he was about to slap you awake for daring to dismiss him like that.
But… he didn’t.
He lowered his arm, gritting his teeth.
“Tch.” He huffed, shoved his hands in his pockets, and stormed out of the classroom—leaving you completely untouched
Everyone stared at you like you’d just defused a bomb by snoring at it.
“Holy crap,” someone whispered. “He just… let them go?”
“Did he hit his head on the way in?!"
yandere taehun who after that first encounter, he started watching you. Not in the creepy-stalker-from-the-bushes way (okay, maybe, but he wasn't ever gonna to admit it)—but in the "you moved your seat two inches, and he noticed immediately" kind of way.
He learned your routine. When you leave for class. What snacks you buy. Where you nap. If you so much as change your drink order, he glares at the bottle like it personally insulted him.
“Why’d you get strawberry milk instead of banana?” he asked, staring at your drink while you just raised an eyebrow
“…because I felt like it?”
“…Don’t do that again. It threw me off.”
Honestly him hanging around you started small—him showing up at the front gate the same time you did, saying it was a “coincidence.” before calling you an asshole for not complimenting and noticing his brand new shoes he bought. (He didn't even buy it, he stole it from some random dude in the arcade)
Then he started showing up in the library when you went to nap during free period, lounging two tables away, flipping through a manga he didn’t even read.
Then he started showing up outside your club room, pretending he was “just walking by” even though he was sweating from sprinting across the building to get there first.
And soon enough, it started to become everyday where, no matter how much you tried to dodge or reroute or disappear, he’d follow you and bug you.
yandere taehun who honestly to you was a complete weirdo. That was the only real word you had for him, a weirdo with shaggy brown hair that always looked like he’d just rolled out of a brawl.
A weirdo who had a black belt in Taekwondo and once broke a guy’s front tooth, a weirdo who followed you around like some cursed shadow that insulted you every five steps and then stared at you like you were the most interesting thing he’d ever seen.
yandere taehun who was obsessed, and not the fun kind, either. The pathetic kind, where he memorized your class schedule, knew your locker combination (he swore it was just coincidence), and made sure he stood close enough to you during fire drills just so no one else could.
Still, he kept the act up. Kept calling you annoying. Kept pointing out your dark circles, calling you “a droopy raccoon” whenever you yawned too hard.
“You dress like a grandpa,” he said once, pulling at the oversized hoodie you wore to school. You deadpanned, “You follow around a grandpa every day, then.”
He stared at you for a second, flushed red down to his collar, and then shoved his hands into his jacket, grumbling, “Shut up.”
You smirked.
He hated that.
He really did.
(Except he didn’t. He really, really didn’t.)
No matter how much he tried to talk shit, he always stood a little too close.
yandere taehun who even when school ended, was already leaning against the front gate, arms crossed, pretending he wasn’t waiting for you.
“Oh, look who finally showed up,” he muttered as if you specifically asked him to stay after school to walk you home.
“You could’ve gone home.”
“Eh.” He stretched lazily, hands behind his head. “I wanted to walk my ugly little grandpa home.”
“…Stop calling me that.”
“Make me.”
You didn’t.
You just sighed and started walking, and like always—he followed.
You could feel his eyes on you every few seconds, like he was memorizing the curve of your back, the rhythm of your walk, the way your head dipped when you were quiet, the way you fumbled to get your phone out of your pocket.
yandere taehun who soon even began dragging along to play at the arcade, the arcade became a weird part of your routine. Or well-his routine that he dragged you into.
Sometimes, he'd show up behind you in class, lean down and whisper, "Don't make plans after school."
You didn't even ask why anymore.
You just sighed, grabbed your bag, and let yourself be dragged off to another 45 minutes of him bitching about not winning and you cheating.
"You cheated."
"You mean I played better."
"No, you distracted me. Your stupid hoodie sleeve brushed my arm and threw me off. Also your face was in my peripheral and it's annoying."
you grinned, "are you saying I'm pretty?"
"I'm saying your face structure is distracting," he barked, ears red.
You laughed.
That only made his blush worse.
Taehun slammed another coin in like it personally insulted him and barked, "Rematch. Right now."
yandere taehun who when he won? Oh. You had to suffer. “Ladies and gentlemen,” he’d say, standing up like he was giving a damn press conference, “We’ve done it. I have once again proven that I am, in fact, your superior.”
“You won one round.”
“That’s all I needed.”
Then he’d grin at you, dumb and wide and so obviously proud of himself that you had to hold yourself back from beating the fuck out of him
yandere taehun who it became habit for him—dangerously so to cling onto you. He started leaning into your space like it was his.
Started pulling your hoodie strings, started walking behind you and messing with your hair until you smacked him away.
“God, you’re clingy,” you muttered one day, after he looped an arm around your shoulders for no reason at all.
“I’m not clingy,” he said, voice muffled as he leaned on your back.
“You’re literally clinging.”
“I’m strategically anchoring myself to my favorite girl”
“…?”
He looked up, blinked.
“I said ‘my favorite asshole’ You misheard.”
Uh-huh.
But still… when you rolled your eyes and tried walking away, he grabbed the back of your bag.
“Oi. Where are you going?”
“Home?”
“I didn’t say you could go yet.”
“really dude.”
“You still owe me another round. Best of five.”
"You lost the last three.”
“So I need redemption. Duh.”
yandere taehun who only got worse over time, inviting himself over to your house.
What started with Taehun walking you home "by accident" turned into him casually slipping his shoes off at your front door like he'd lived there all his life.
"Where's your mom?" he asked once, already halfway down the hallway.
"Not home."
"Perfect. I hate being polite." He made a beeline for your room, flopped onto your bed like gravity summoned him there, and spread out like he owned the place.
“This is comfortable,” he muttered, patting the sheets with approval. “It’s mine now.”
You stood by the door with your arms crossed. “What do you want, Taehun?"
He didn’t even look at you.
“Company. "
“I didn’t invite you.”
“You never do."
You sighed.
He really didn’t care about permission anymore. He just picked up your plushie, tossed it in the air, caught it. “You sleep with this? What are you, five?”
You snatched it back. “What are you, still in my house?” He rolled onto his side, smirking as his brown shaggy hair fell over his eyes.
“Yep. Got snacks?"
Asshole.
And worst of all? Whenever your phone was vulnerable (you would step out the room to get some water ), he’d started going through your phone.
One moment he was busy going through your cabinets, and the next, he had your phone in his hands like it was some security threat.
"Who's this guy?" he muttered, scrolling through your messages, not caring that you were back, that you knew he was going through your phone.
"Why’s he got a emoji next to his name? Huh? Who's ‘Minwoo’? Sounds like a loser."
You lunged. “Taehun, give me my phone—!”
“Don’t worry, I’m blocking him for you.”
“Give—”
“Wait, who’s this one??”
You finally snatched the phone from him, glaring as you locked the screen. “Do you want to get kicked out?” you asked, deadpan.
He crossed his arms, furrowing his eyebrows like a little kid disciplined as you glared at him, “Do I go through your phone?"
“no but thats ‘cause mine’s boring. Yours is suspicious.”
You stared at him, completely unamused. He kicked your foot lightly.
“Come on. Let me see it. I won’t block anyone.”
“…You blocked someone last week.”
“He had too many vowels in his name. I don’t trust that.”
You sighed again and sat on the floor, pulling your phone back out. He immediately narrowed his eyes.
“Are you seriously going back on it? After that whole tug-of-war?”
“Yeah,” you said plainly, scrolling. “You talk too much.”
“Unreal. I should dump you.”
“We’re not dating.”
“We would be if you stopped texting other people.”
yandere taehun who even when you were slightly quiet, would interrogate you.
“Are you mad?”
“No.”
“You’re ignoring me.”
“I’m thinking.”
“Think about me.”
You stared at him.
“…You’re not that interesting.”
He scowled. “You wound me.”
You turned your head. He immediately poked your cheek.
“Still mad?”
“I said I’m not.”
“Okay, but your face says you hate me.”
“That’s just my face.”
“Fix it.”
You didn’t. So he sighed—loudly, dramatically—then slung his arm around your shoulder and leaned all his weight on you like a dramatic cat who decided you were his.
“Whatever. I forgive you.”
“I didn’t ask for forgiveness.”
“Shhh. I’m a bigger person. You’re welcome.”
yandere taehun who at some point, just gave up pretending. He didn’t even bother hiding the way he followed you everywhere anymore. Didn’t hide the clinginess, the comments, the hands always somewhere on you—ruffling your hair, dragging you by the sleeve, throwing an arm over your shoulder like he had a claim.
yandere taehun who even started bringing you with him to taekwondo practice. Not because you showed interest. Not because you wanted to go. But because he decided your presence was mandatory.
“You need to build discipline,” he said one afternoon, already dragging you along by the wrist. “All you do is lay around like a depressed cat.”
“Because I’m tired.”
“You’re always tired.”
“Because you waste my energy.”
He ignored you.
By the time you got to the gym, you’d already made peace with your fate—your body going completely limp the second you saw the mats. He tossed you a towel. You used it as a pillow and lay flat on the floor while he did warmups.
“Are you seriously just gonna lay there like roadkill?” he asked, already doing perfect stretches with his jacket tied around his waist.
You grunted in reply. “Unreal,” he muttered, launching into a roundhouse kick that probably could’ve decapitated a dummy.
“I’m a masterpiece, and you’re not even watching.” Another grunt from the floor.
“Oi,” he barked. You cracked an eye open. He stood there, sweaty hair sticking to his forehead, chest rising with practiced breath, gaze sharp—but somehow still smug.
“Did you see that kick?” he asked.
“Mm.”
“Rate it.”
“Out of ten?”
“Duh.”
“Two.”
His face froze. “Excuse me?!”
You yawned. “Had no flair.”
“I almost broke the goddamn dummy.”
“You didn’t even sparkle.”
He stomped over, crouched beside you, towel slung around his neck, breathing hard but still managing to look like a bratty gremlin.
yandere taehun who had the ego of a celebrity and the attitude of a sleep-deprived delinquent. He walked into school like everyone should clap, like the hallways were a runway and he was the show.
And honestly? The worst part was? He was stupidly good at everything.
He fought well. He kicked even better. He had enough natural charm to make people love him—or fear him—and enough arrogance to act like he deserved both.
“I’m the best,” he’d say without irony, leaning back in his chair with that smug smirk on his face. “Objectively. No bias.”
"definitely not humble,” you’d mutter from your desk.
He clicked his tongue. “Can’t have everything, right?”
He bullied literally everyone. Students, upperclassmen, even teachers if they looked at him funny.
No one was safe.
Except you.
You were the one person he insulted with a filter. He’d still poke at you, sure. Still call you lazy, annoying, boring. Still grab your collar when you tried getting away from him, still made fun of your lack of motivation to do anything.
But when it came to real teasing? He went soft. That one time a guy in your class made a joke about your handwriting being messy, Taehun practically teleported across the room, eyes narrowed and mouth tight.
"Say that again,” he said, tone flat and dangerous. The guy laughed. “Dude, chill, I was just—”
“I’ll break your fingers so you can’t write either. Wanna match?”
You blinked, confused. “Taehun—”
“Shut up, I’m defending your honor.”
“I don’t need—”
“Shut up.” And then he turned to you and muttered: “…Your handwriting is still ugly, though.”
You deadpanned. “and you're still a bitch."
yandere taehun who over time, grew softer with you, even when his face still looked blank and unreadable to others.
He started becoming handsy without realizing—resting his head on your shoulder during study periods, curling beside you on the floor during movie nights, brushing his fingers through your hair when you looked tired and pretending it meant nothing.
He still insulted you. Still mocked you. Still had that signature bratty glint in his eye when he called you names.
But it was different now. You two became practically inseparable. Like best friends, but not. Something closer, something messier.
You bickered and teased and called each other names, but you never drifted far. He knew your routines by heart—knew where you’d be, when you’d leave, how fast he had to walk to catch up.
“Don’t go,” he’d mutter when you tried to leave him early.
“Why?”
“Because I’ll miss you. Dumbass.”
yandere taehun who at some point, things shifted. Not all at once, but slowly—like gravity pulling you closer without warning. Taehun had always been in your space, hovering around like a storm cloud with too much attitude and not enough boundaries. But now? He was practically glued to you.
yandere taehun who treated you like you were his personal comfort zone, his stress relief, his person.
He’d whisper jokes against your temple during long lectures, trace your hand with his finger under the desk when he was bored, and randomly pull you into his chest so tightly they almost knocked you off balance.
And if you ever gave him even the tiniest bit of affection back—like touching his hair or letting him nap against you? He’d act all smug about it for the next week.
“See? You’re getting attached,” he’d whisper, watching you with that slow, half-lidded gaze that made girls all over from the school fawn over him.
“You wish."
IM BACK YALL!! I HOPE YOU ENJOYED!! BTW THIS IS NOT PROOF READ
WHAT ELSE CHARACTERS SHOULD I DO? OR LIKE ANY REQUESTS?? SHOULD I REWRITE YAN LIGHT ?? IDK GIVE ME IDEAS !! :33 👅👅
