One-Punch Man was released on 2015 and directed by the acclaimed director and was released in languages Ja has a duration of 24 minutes, on a budget of and with an IMDB score of 8.2 and with actors in the cast 日野聪 Barbara Goodson Lex Lang . Saitama is a hero who only became a hero for fun. After three years of “special” training, though, he’s become so strong that he’s practically invincible. In fact, he’s too strong—even his mightiest opponents are taken out with a single punch, and it turns out that being devastatingly powerful is actually kind of a bore. With his passion for being a hero lost along with his hair, yet still faced with new enemies every day, how much longer can he keep it going?