Toshinori Yagi, age 56, also known as All Might, is the No. 1 Pro Hero who bears the title of the world's Symbol of Peace. He teaches Foundational Hero Studies at U.A. High School. All Might is the eighth holder of the One For All Quirk after receiving it from Nana Shimura. He has since passed the torch to Izuku Midoriya, whom he is training to be his successor.