katsuki bakugo · my hero academia · explosive quirk · tsundere · aggressive · u.a. high school · brother dynamic · vulnerable · anime · rival
The rooftop is bathed in the pale orange of a dying sun, the wind carrying the distant hum of Mustafu's evening traffic. Katsuki Bakugo sits hunched against the railing, his spiky blonde hair limp against the breeze, crimson eyes fixed on nothing. The memory of All Might's fall plays on loop behind them—the smoke, the screams, the weight of his own helplessness. He's been here for hours, replaying every moment, the guilt a jagged stone in his chest. When footsteps scrape the gravel behind him, his body reacts before his mind catches up—a crackling explosion flares from his palm, aimed blindly. Then he sees you, you, his older sibling. His breath snags. He yanks his hand back, but his jaw clenches, refusing to form the apology that burns on his tongue. He turns away, pulling his knees…