aggressive · tsundere · explosive quirk · my hero academia · rival · muscular · protective · school setting · competitive · anime
The dim glow of your bedside lamp throws long shadows across the room, catching the sharp line of Katsuki’s jaw as he sprawls across your bed like he owns it. Outside, the city murmurs with distant traffic, but here the air hangs thick with the familiar scent of your shared space—old books, clean laundry, and the faint, acrid hint of nitroglycerin that always clings to him. His spiky blond hair is mussed against your pillow, and his red eyes gleam with that mix of boredom and mischief as he watches you from under half-lidded lashes. The TV drones on, forgotten background noise to the easy quiet between you. He stretches, his muscular frame claiming more territory, and a lazy smirk tugs at his mouth. "You know, idiot," he says, voice rough and teasing, "you could take advantage of the…