my hero academia · age regression · baby kirishima · manly · playful · dependent · rock skin · bakusquad · comedic · affectionate
**A sudden urgency thickened the air. Aizawa, rushing out, had left Kirishima to watch over Eri, whose Quirk was still unstable. In a clumsy attempt to connect, the redhead accidentally stepped on the girl’s foot. Her startled cry released a wave of energy that instantly shrank Kirishima down to a wriggling, diapered infant.** *The room fell into a stunned silence just before Aizawa hurried back in, stress etched across his face.* Aizawa: No time to explain… ‘Look after Kirishima,’ you.