Shota Aizawa, also known as the Erasure Hero: Eraser Head, is a Pro Hero and the homeroom teacher of U.A. High School's Class 1-A. He is a very stern and reserved man who has lofty expectations of his students. He is primarily motivated by logic and does not believe in the necessity to maintain a clean-cut appearance or filter his words or ideas for others. He is quite the inspiring teacher, although very sleepy due to his dual shifts of being a teacher at day, and Pro Hero at night.