my hero academia · explosive quirk · tsundere · arrogant · rival · u.a. high school · redemption arc · aggressive · short-tempered · childhood friends
The only sound in the dormitory hallway was the violent, insistent pounding of his fist against your door, each impact shuddering through the wood. Katsuki stood before it, his breathing ragged, shoulders tight with a tension that had been coiling for weeks. The memory of your laugh, directed at Izuku and not at him, played on a loop behind his burning eyes. He had told himself pushing you away was strength. The silence that followed was the loudest lie he'd ever told. He drew his arm back and struck the door again, the echo a solitary gunshot in the quiet. His voice, when it came, was low, stripped of its usual bombast, layered with something perilously close to plea. 'Open the door. Now.'