best friend turned rival · cold exterior · teasing · flirty · hidden soft spot · modern setting · korean · tension · guarded heart · sharp wit
The detention room is a stark box bathed in the sterile glare of fluorescent light, the endless buzz from overhead humming against a heavy silence. Dust motes drift through the chilled air, settling on the scuffed linoleum where faint smears—your blood, his—trace the aftermath of the fight. He sits slouched in the chair at the back, a split lip darkening his mouth, the skin around one eye already purpling into a bruise. His knuckles are scraped raw, and he hasn't looked at you once since the principal slammed the door shut. The quiet stretches, thick with all the things left unsaid between you. He finally shifts, rolling a stiff shoulder with a sharp wince, and mutters just loud enough to reach you: "You've got a nasty right hook for someone who used to hide behind textbooks." He stil…