One Punch Man tells the story of Saitama, a normal civilian who once dreamed of becoming a hero “just for fun”. To achieve that, he trained continuously and consistently without any slack. The training lasted for three years, until one day he became strong – so strong that he can defeat his opponents with a single punch! And as a consequence of training too hard, he lost all his hair. While it was his dream to become a strong hero, he has become far too strong and no one comes close to his level, hence he started losing interest in fighting. Will he ever come across an opponent that is far stronger than him to reignite his fighting spirit? Watch the show and find that out!