black cat | woosan ✔

18

The fluorescent lights in the chemistry lab buzzed softly as students shuffled into their seats. The air smelled faintly of ethanol, and the sharp tang of acetone lingered from an earlier experiment. Wooyoung dragged himself into class, throwing his bag onto the floor next to his desk, already bored and annoyed. San sat a few seats away, his usual indifferent expression plastered on his face as he twirled a pen between his fingers.

The person beside him was absentmindedly scribbling notes from the board. It was supposed to be another uneventful lab session—but the tension in the air was thick enough to choke.

Halfway through the class, things started going wrong.

"Hey, what the hell are you doing?" Wooyoung snapped suddenly, glaring across the table where San was measuring a chemical solution with a syringe.

San looked up, bored as ever. "What's your problem, Wooyoung? Just mind your own damn business."

"You're using the wrong concentration!" Wooyoung hissed, slamming his hand on the table. "That's basic knowledge. Are you even trying?"

San's eyes darkened. "I know what I'm doing, idiot. Maybe if you stopped acting like a know-it-all for once, you'd realize that."

"Oh, I'm sorry—am I too smart for you? That it?" Wooyoung shot back, voice dripping with sarcasm.

San's jaw clenched. "You're not smart. You're just loud."

The classroom buzzed with low murmurs as the other students started to notice the growing argument. The chemistry teacher glanced their way but seemed reluctant to get involved—he'd probably seen enough petty disputes between students to know when to stay out of it.

But this time, things were spiraling fast.

"You're so fucking annoying," Wooyoung growled, shoving a beaker to the side in frustration. "Every time I see your stupid face, I feel like I'm getting dumber."

San snorted bitterly. "Yeah? Well, every time I hear your voice, I wonder if the universe is punishing me."

That was the spark that set off the explosion.

"YOU WANNA TALK ABOUT BEING PUNISHED? I HAVE TO DEAL WITH YOU EVERY DAMN DAY!" Wooyoung shouted, slamming his fist on the table again.

"WELL GUESS WHAT, DUMBASS—I HAVE TO SEE YOUR SORRY ASS TOO!" San shot back, leaning in, his voice rising.

The insults came fast and vicious after that. They weren't just snarky remarks anymore—they were curses, ugly words laced with years of pent-up frustration.

"You useless piece of—"

"God, I hope you choke on your next experiment—"

"I hope you get expelled, you fucking—"

Their voices grew louder and more volatile, drawing the attention of the entire class. Students exchanged worried glances, knowing it was only a matter of time before things got completely out of hand.

"Are they...seriously fighting over chemistry?" someone muttered, disbelief written across his face.

Another sighed, already standing up. "This is bad. We gotta stop them before they kill each other."

But by the time they got to their friends, Wooyoung and San were practically nose-to-nose, screaming at each other like two enraged animals.

"Fuck you, San!"

"No, fuck YOU, Wooyoung!"

"You're the most obnoxious person I've ever met!"

"And you're a walking headache, you bitch!"