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.
As O'Clock and his accidental allies Tiger Bunny and The Rapper try to escape the riot in the underground arena, shadowy figures observe the chaos from afar. O'Clock takes on a hooded fighter who seems to be targeting him specifically.
