Toshinori Yagi (八や木ぎ俊とし典のり Yagi Toshinori?), also known as All Might, is the former No. 1 Pro Hero who bore the title of the world's Symbol of Peace. He teaches Foundational Hero Studies at U.A. High School. He adopted All For One's daughter, Matsushima Yoko, & lies to her about being her bio father.