All Might's last fight against All For One set off a series of events leading to his retirement as a hero, but he continues to fight, even as the embers of One For All within him die out.
This is the song to be a HERO
يا من تورّمَ جفنُها لن تحزني مجدداً
dessen Augen immer rot geschwollen waren,
nie wieder traurig sein wirst.
Sonna HERO ni naru tame no uta