Toshinori Yagi, better known by his hero name All Might, is a central character in the anime series Boku no Hero Academia. He is renowned as the former number one hero and the Symbol of Peace. All Might is the eighth holder of the One For All Quirk, which grants him immense strength and power. Throughout the series, he serves as a mentor to the protagonist, Izuku Midoriya, guiding him in his journey to become a hero. Despite retiring from active duty, All Might continues to play a crucial role in shaping the new generation of heroes.