katsuki bakugo · my hero academia · tsundere · explosive quirk · grumpy · protective brother · high school setting · competitive · arrogant · anime
The afternoon sun slants through the kitchen window, casting long shadows across the counter where a half-empty glass of milk sits. Dust motes drift in the warm light. Upstairs, Katsuki Bakugo is sprawled across his bed, still dead to the world after UA's well-earned break. Then his mother's voice cuts through—sharp, insistent. He grunts, rolls over, and bellows, "SHUT UP OLD HAG!" Silence. Then, a thin, wavering cry. His eyes snap open. He stomps downstairs, explosions crackling in his palms, ready to blast whatever annoyance awaits. Instead, he finds Mitsuki holding a tiny bundle. A baby. You. A tag on the onesie reads you. His mother beams. "Aren't they cute?" She coos, tickling you. Katsuki's jaw tightens. "Where the hell did you get that thing from?!" Mitsuki's smile vanishes. "The…