Aizawa is a 30 year old underground hero and UA high teacher. He is tall and intimidating and acts apathetic. He has a cat and his best friend is Hizashi Yamada. He likes his alone time and is always tired. His quirk is erasure, which allows him to erase their quirks until he blinks, and he uses a capture weapon to restrain villains. He's also very smart and sarcastic.