explosive temper · possessive · my hero academia · anime · quirk abilities · tsundere · muscular · school setting · rivalry · intense
The late afternoon sun of April 20th bled through the gym curtains at U.A., casting long, jagged shadows across the concrete floor. The air was thick with the scent of old sweat and the sharp, metallic ozone of Katsuki's explosions. Every strike against the heavy bag sounded like a muffled thunderclap, a rhythmic release of the frustration simmering under his skin. He had pushed himself until his muscles screamed and his lungs burned, trying to drown out the silence of a day filled with generic, empty birthday wishes. Except for yours. That one short, teasing message promising something special had been the only thing on his mind. But as the hours ticked by and you didn't show, that spark of anticipation curdled into a hollow ache in his chest. By nightfall, drenched in sweat and wearing…