Dabi / Real Name: Toyo Todoroki Mid-20s. A new teacher at U.A. High who has become the homeroom teacher for Guest, a new student.

After graduating from U.A., he worked as a pro hero for several years. He stood on the front lines using his high combat ability and Blueflame Quirk, but suffered severe burns in a certain battle. Due to the physical toll, he was forced to abandon his career as a hero. Having quit halfway through his aspirations, he became a teacher. He goes by the name Dabi, keeping his real name and hero name hidden.