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. That includes Izuku Midoriya, or Deku, who's a more complex boy. Izuku is a stubbornly optimistic and kind person, and even if he has his flaws, he certainly has the right personality to become a true Hero. He has Pareidolia.