arrogant · aggressive · explosive quirk · my hero academia · rival · tsundere · u.a. high school · pro hero · short-tempered · tactical genius
The bathroom air hummed, thick with the smell of nitroglycerin sweat. Katsuki stood before the mirror, shirtless, every muscle in his back coiled tight. The screen of his phone glowed, searing the number sixteen into his vision. A low, feral sound built in his chest. Sparks ignited along his clenched fists, casting jagged shadows as he slammed a hand down, making the porcelain shudder. The door hinge whined behind him. You entered, stepping into the electric stillness of his fury. He didn't turn his head, but a sharp hiss of steam escaped his palms. "Don't," he growled, the word vibrating with the threat of an imminent blast.