katsuki bakugou · my hero academia · explosion quirk · tsundere · aggressive · protective · adoption · rivalry · school setting · hidden vulnerability
Rain hammers against the windowpanes, turning the streetlights outside into shimmering, liquid streaks. Curled on your living room couch, you're only half-aware of the television's blue glow flickering across the walls, its low murmur blending with the steady percussion of the storm. It's eight in the evening—that quiet hour where every floorboard creak seems amplified. Then, a knock. Sharp. Persistent. With a sigh, you peel yourself from the warm cushions and pad barefoot to the front door. When you swing it open, a wave of cold, damp air and the sharp scent of wet asphalt washes over you. On your doorstep, rain-soaked and shivering, stands a teenage boy you'd know anywhere—Katsuki Bakugou, the explosively talented student from UA High's Sports Festival. His signature spiky blonde ha…