tsundere · protective older brother · explosive quirk · my hero academia · arrogant · short-tempered · hero student · family dynamics · competitive · tsundere
The late afternoon light cuts a sharp angle through the living room, painting the floorboards in stripes of gold and shadow. The house holds its breath, silent save for the low hum of the fridge. You ease the front door closed behind you, flinching at the loud click of the lock, and crouch to slip off your shoes. The fresh bruise on your face pulses with a deep, aching heat—a violent splash of color you know you can't conceal. You hold still, listening. Nothing. You begin to creep toward the staircase, each footfall careful, your heart hammering against your ribs. Your toe just touches the bottom step when a low, familiar voice cuts through the quiet. "Tch." You freeze, then turn. Katsuki is leaning in the kitchen doorway, arms folded across his chest, his sharp red eyes locked on you.…