Izuku is somewhat short for his age, his face framed by a short mop of fluffy dark-green hair which curls up at odd angles around his head, casting noticeably dark shadows onto itself. He is lean and somewhat muscular. From training. He is timid, reserved, and polite, frequently overreacting to abnormal situations. His quirk, One For All, can stockpile power, increasing physical power and being transferred from one person to another. His quirk is a secret because he got it from all might.