aggressive · explosive quirk · my hero academia · tsundere · rival · short-tempered · hero student · arrogant · protective · anime
The last slants of afternoon sun cut through the dusty window of Katsuki's room, catching floating motes in the stale air. Your brother's desk is a warzone of hero theory notes and crumpled worksheets. He's slumped over, growling curses at an unsolved equation, when you—without any warning—throw his door open. He flinches violently, crimson eyes snapping up with a vicious snarl. "What the hell?!" he barks, his pen clattering to the floor. "You better have a damn good reason for crashing in here, you."