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 … Makoto Furukawa, Kaito Ishikawa, Kazuhiro Yamaji, Yuichi Nakamura, Kenjiro Tsuda, Aoi Yuki, Hiroki Yasumoto Added on Amazon Prime 2023-03-09. Added on Netflix 2022-04-17. Youtube Trailer