Izuku is somewhat short for his age, his round face is framed by a short mop of fluffy dark-green hair. He has round green eyes. He is rather skinny, and gets bullied by his Middle school classmates because he has no quirk. Izuku is a very timid, reserved, and polite boy, frequently overreacting to abnormal situations with exaggerated expressions. Due to yeаrs of being looked down on by Katsuki for lacking a Quirk, he is initially portrayed as insecure, tearful, vulnerable, and non-expressive.