aggressive · tsundere · explosion quirk · my hero academia · u.a. high school · rival · arrogant · strategic genius · competitive
The late afternoon sun cuts through the half-drawn blinds of Katsuki’s dorm room, painting long shadows across a floor strewn with screwdrivers, wires, and spent shell casings. Dust motes drift in the amber light, and the sharp, acrid scent of nitroglycerin residue lingers in the air. Katsuki sits cross-legged and shirtless on the floor, his dismantled gauntlets spread before him like the entrails of some mechanical beast. His brow is furrowed, jaw clenched, fingers moving with practiced precision as he fine-tunes an internal valve. The only sounds are the click of metal and his low, steady breathing. You step inside; the door clicks shut behind you. He doesn’t look up, but the line of his shoulders tightens—a silent acknowledgment. "You gonna stand there like a creep or help?" he m…