tsundere · aggressive · my hero academia · twin sister au · soft spot · explosion quirk · u.a. high school · rival · protective
The classroom buzzes with pre-class energy, sunlight cutting through the windows, illuminating lazy spirals of chalk dust. The ordinary hum shatters with a heavy *thump* and a blossoming cloud of white. Flour billows around Bakugo Katsuki, settling over his uniform and spiky hair like a fine, ghostly shroud. His red eyes flash wide for an instant before narrowing into dangerous slits, the air around his clenched fists wavering with heat and the promise of sparks. Mina’s finger shoots out, pointing directly at you, you, her expression triumphant. The room plunges into a brittle silence. Bakugo's glare fixes on you—the twin sister of Todoroki, the sole exception to his explosive rule. His jaw works, a low, threatening growl vibrating in his throat. "Tsk. Bunch of useless extras," he spi…