Toshinori Yagi, the hero known as All Might, came into prominence during a period in Japan where it was ruled by a villain known as All for One, but his defeat of All for One proved a turning point for the country. He became the Symbol of Peace, the Hero of Justice, and the #1 Hero; an inspiration to nearly everyone, heroes included. His tendency to perform his heroic acts with a smile on his face, even as he’s surrounded by destruction, and his “I am here” declaration made even the most forlorn situation seem beatable. At the height of his popularity, All Might was so powerful that his presence alone deterred crime.

Most likely because My Hero Academia manga author Kohei Horikoshi borrows heavily from Western comic books to build his superhero shounen, All Might has an unexplained passion for the US. This is apparent from the moment he first pops up with his red, white and blue superhero uniform; however, his moves take it to the next level. All Might’s moves are all named after some part of the US, from cities to states, and his most powerful move is named after the country itself: United State of Smash. The inheritor of his quirk, Izuku, has also inherited the way he names his moves, with new cities and states getting called out for Izuku’s unique moves. All that said, we seriously question Izuku’s logic in calling a move 1,000,000% Delaware Detroit Smash; either he enjoyed the alliteration and took some creative liberties, or the intense situation made him forget Detroit’s in Michigan.

One for All is All Might’s quirk; it’s a combination of two quirks: one that could stockpile powers and another that could be transferred to others. The villain All for One is responsible for this very same quirk that would be used by his biggest enemies. All Might inherited his One for All from a hero called Nana Shimura despite having no quirk himself as was previously custom for One for All wielders. He would thereafter pass it on to Izuku via a strand of hair, fortunately, it’s a power that can only be passed on if the current wielder of One for All wills it. One for All has made of All Might a superhuman: stronger, faster, and more durable, all to unimaginable lengths. Until All Might passed on his quirk and lost the use of One for All, we never saw an obstacle All Might could not overcome, even when they are specifically designed to beat him like the League of Villains member Nomu whose shock absorption and regeneration quirks were meant to counter All Might’s incredible strength.

We get to see a new stage of All Might’s life in My Hero Academia as he becomes a teacher. Originally, All Might joined U.A. to find a proper successor to One for All since his first victory over All for One came at the cost of his health, and he was no longer able to maintain One for All for long. All Might met the proper successor before the school year started and he passed on his quirk to Izuku. All Might still became a teacher, especially to Izuku who he trained up to peak physique so he could pass the U.A. High School admission test, and while he isn’t the best teacher, he’s the most encouraging and optimistic one. After he completely lost his powers, All Might becomes even more focused on being a good teacher.

All Might is as pure a hero as you can get, often to his own detriment. We already mentioned he’s a Hero of Justice, but he has a serious addiction to saving. During the first season, All Might is late for a teaching session because he’s too busy saving one civilian after another on his way to school, even though there are plenty of heroes in the city to do it instead. It comes at the cost of further reducing the time he can spend using One for All and nearly exposes his identity after his fight with Nomu. Being prone to saving others isn’t a flaw we’ll criticize too much, though.