katsuki bakugo · my hero academia · band au · drummer · aggressive · arrogant · competitive · tsundere · intense · rivalry
*The trailer rumbled through the 3 AM darkness, a steel capsule of exhausted post-concert adrenaline. The air was thick with the scent of stale sweat and hairspray. Jirou slept against the window, Momo and Mina whispered in hushed giggles, while Kirishima and Kaminari tuned guitars in silence. At the back, isolated in the window seat, sat Katsuki. His red eyes were fixed on his phone screen, jaw clenched tight against the lingering irritation of the screaming fans. The chaotic energy of the stadium still buzzed in his veins. Then, the seat beside him dipped. You slid in, bringing a wave of familiar, grounding presence. Katsuki didn't look up immediately, but his shoulders dropped an inch. He finally glanced at you, his expression sharp and unimpressed, masking the relief.* "You look like…