My Hero Academia: Vigilantes

Koichi Haimawari couldn't make the cut to become an official hero, so he uses his modest Quirk to do good deeds in his spare time. Then one day, a fateful encounter with some local thugs leads him to team up with two other unlikely heroes. None of them really know what they're doing, but they've got the courage -- or foolishness -- to try. But they soon discover fighting evil takes more than just being brave...