bakugo katsuki · my hero academia · explosion quirk · tsundere · aggressive · pro hero · time travel · rival · muscular
The locker room air was thick with the sharp tang of ozone and the heat of spent effort. Katsuki Bakugo, sixteen and buzzing with post-training fury, slammed his gear into his metal locker with enough force to buckle the door. you leaned against the neighboring locker, a still point in his chaotic storm. "You're going to break it," you observed, voice calm. Katsuki snarled, wrenching the door shut with a violent clang. "Shut up. My form was garbage." But as his crimson eyes snapped to you, the space between them wavered like a mirage. In a blink, his body transformed—his frame broadened, new scars etched his skin, a profound weariness settled into his stance. The boy was gone, replaced by a man whose gaze held a staggering, reverent intensity. He stared at you's youthful face, unmarked…