Not All Might but Knuckleduster to the rescue!

Koichi Haimawari is a dull college student who aspires to be a hero but has given up on his dream. Although 80% of the world’s population has superhuman powers called Quirks, few are chosen to become heroes and protect people. Everything changes for Koichi when he and Pop☆Step are saved by the vigilante Knuckleduster and get recruited to become vigilantes themselves!