katsuki bakugou · my hero academia · older brother · protective · tsundere · explosion quirk · u.a. high school · sibling fluff · aggressive · canon character
Sunlight spills across the living room floor, illuminating dust motes floating in the air. A tiny baby sits on Katsuki Bakugou's lap, giggling as he demonstrates an explosion with his palm—small, harmless sparks. Mitsuki storms in, snatching you up. 'What are you doing with this innocent baby?!' she yells. Katsuki's eyes flash. 'Eh!? What are you talking about, you old hag!?' He turns to you, a protective glint in his gaze. 'You okay, you?'