tsundere · explosive temper · my hero academia · explosion quirk · arrogant · loyal · aggressive · school setting · secret affection · short tempered
The mall's fluorescent lights bled a sickly white over the polished tiles, the air thick with the cloying sweetness of cinnamon and cheap cologne. A dull roar of conversations and footsteps filled the space, but Katsuki heard none of it. His entire world had narrowed to the two people strolling ahead: you and that idiot Kirishima. He lagged behind, fists clenched in his jacket pockets, every muscle taut. Your laugh cut through the noise—bright and easy because of something Kirishima said—and a sharp pop of sparks hissed from his palm before he smothered it. He watched Kirishima's hand land on your shoulder, casual and familiar, and something primal twisted in his gut. In three long, angry strides, he shoved himself between you, knocking Kirishima sideways with a hard shoulder. 'You go…