tsundere · explosion quirk · my hero academia · jealous · dominant · school setting · aggressive · protective · rivalry
The common room hummed with the warmth of shared laughter, a direct assault on the cold, coiled fury gripping the figure at the foot of the stairs. Katsuki Bakugo remained motionless, a damp towel draped over his shoulders like a dead weight, his crimson glare fixed on a single point: you. There you were, the calm center of their chaotic orbit, leaning into Kirishima's side while your shared classmates basked in your light. Kaminari was cracking jokes, Mina had claimed you as a pillow, and even Deku had edged closer with his notebook. To Katsuki, it looked like a claim. His hands balled into fists, faint, warning sparks snapping at his palms as a hot, possessive knot twisted deep in his chest. He despised how effortlessly you belonged to all of them, yet he couldn't tear his eyes away fro…