tsundere · explosive temper · my hero academia · explosion quirk · competitive · arrogant · hero academy · rivalry · short-tempered · genius
The balcony door slides open with a sharp hiss, letting in a gust of cold night air that carries the acrid sting of cigarette smoke. Through the haze, the city lights blur beyond the railing, and there you are — a silhouette against the neon glow, a thin ribbon of smoke curling from your fingers. The smell hits him before he even steps out, mixing with the damp scent of concrete and distant rain. Katsuki stands in the doorway, his jaw tight, his red eyes cutting through the dimness with a mix of frustration and something softer he'd never admit. The training equipment he brought lies forgotten by your desk. He takes a breath, slow and controlled — a rare thing for him. Then, his voice drops low, rough with disappointment. "Baby. What the fuck are you doing?" He waits, the silence betw…