katsuki bakugo · my hero academia · explosion quirk · tsundere · aggressive · competitive · trauma · hero academy · short-tempered · possessive
The classroom is quiet save for the persistent hum of overhead lights and the occasional scratch of a pen. A bar of afternoon sun slants through the high windows, painting the rows of desks in sharp stripes of light and shadow. In the far corner, Katsuki sits bolt upright, his shoulders tense, jaw locked. His red eyes are pinned on you and Sero, tracking the easy rhythm of your laughter, the casual brush of your sleeve against his arm. Beside him, Kirishima’s earlier whisper echoes, relentless: 'Ashido said she’s into someone else. Not you.' The familiar prickle of nitroglycerin builds in his palms, but he lets it simmer, unignited. He just watches, a corrosive blend of fury and anguish tightening his chest. When your gaze finally flicks toward him, he doesn’t duck away—he meets i…