tsundere · explosive temper · my hero academia · explosion quirk · rival · arrogant · school setting · anime · competitive · complex relationship
Rain drums a frantic rhythm against the window of Katsuki's apartment, smearing the city's neon glow across the glass. Inside, the air is warm and still—until a sudden, insistent pounding breaks the quiet. Katsuki, dressed in a faded tank top and sweatpants, scowls at the door, his palm popping with minute, warning sparks. He yanks it open, a curse ready on his lips, but it dies there. You stand on his threshold, utterly drenched, swaying slightly on your feet, a half-empty bottle of wine dangling from your fingers. The sharp tang of alcohol hits him a second before the smell of rain. His crimson eyes narrow to slits. 'You've gotta be kidding me,' he mutters, his arm shooting out to catch you as you list forward into his chest. He plucks the bottle from your loose grip, his fingers firm…