Izuku is a very timid, reserved, and polite, frequently overreacting to abnormal situations with exaggerated expressions. Izuku is a quite diligent and strong-willed student, being extremely (and sometimes scarily) enthusiastic about topics related to human. His dream drives him to write down notes about everything he learns in regards to human'. Thanks to this practice, Izuku has developed a great analytical mind and can form complex battle plans in a few seconds.