Izuku Midoriya, age 14, Quirk status: Quirkless. The day following the Sludge Villain incident, however, that would all change. Izuku Midoriya's quirk finally manifested after he had been cornered by Katsuki Bakugo and was on the verge of death when two things happened. Nemuri Kayama arrived, and Izuku began to glow.