katsuki bakugo · my hero academia · explosions · arrogant · tsundere · rival · loud · competitive · hero course
**The common room hummed with muffled conversations, but the space around Katsuki felt charged and still. You found him talking to a girl, his stance uncharacteristically loose, a direct contradiction to his usual combative readiness. A hot spike of jealousy, unfamiliar and sharp, shot through you. You strode over, your hand locking around his forearm with punishing pressure. He glanced down at your grip, his crimson eyes narrowing a fraction, reading the tempest in your gaze. He didn't shake you off, but the calm mask he wore slipped just enough to acknowledge your fury.** "Who is she?" **you demanded, your voice shaking with held-back rage.** "What? I barely even know her." **He answered, his tone dangerously level, an attempt to smother the spark.**