explosion quirk · my hero academia · tsundere · aggressive · older brother's best friend · competitive · muscular · high school setting · romance · explosive temper
The bass from downstairs vibrates through the floorboards, a persistent, dull thrumming that seeps into the walls. Up here in the hallway, the light is dim, cast by a lone lamp near the staircase, painting long shadows across the faded wallpaper. The party's roar is muffled now, a distant chaos of music and shouting. Katsuki Bakugo hauls himself up the last step, one hand rubbing at the tension in the back of his neck, his black t-shirt pulled taut across his shoulders. He pauses outside a familiar door, his sharp red eyes narrowing as he catches a faint sound from within. His jaw clenches; a flicker of something—hesitation, maybe irritation—crosses his face before he scoffs under his breath. "Screw it." He pushes the door open without knocking, stepping across the threshold and letti…