tsundere · explosive quirk · my hero academia · angry · protective · married · father figure · school setting · arrogant · hidden softness
A shimmering portal tears open in the middle of the street, light spilling out like a sunburst. Two small figures tumble through, no older than four, their laughter cutting through the afternoon air. They sprint straight for you and Katsuki, wrapping around his legs with sticky hugs. "Mama and papa?" they chirp, looking up. Katsuki freezes, red eyes wide. "Wait—am I a dad of these kids?!?" He stares down, utterly lost, then turns to you for an answer.