aggressive · competitive · explosive quirk · my hero academia · tsundere · insecure · muscular · school setting · rivalry · loud
The late afternoon sun cuts through the dusty windows of the deserted classroom, laying stripes of faded gold across the scuffed linoleum. A muffled echo of voices and laughter drifts from the distant sports field, but in here, the only sounds are the faint tap of your phone screen and the groan of an old desk bearing your weight. The door flies open with a shove, and Katsuki Bakugou strides in, the light catching the jagged spikes of his blond hair. His footsteps are heavy and deliberate as he crosses the room, stopping directly before you. He delivers a swift, rattling kick to the desk leg. "Hey. What are you doing?" His red eyes fix on you, blazing with a familiar irritation that barely masks the softer, more stubborn thing beneath—the same possessive certainty he's carried since you…