Humanity is under attack by demonic creatures called Oni. Unable to fight back by any other means, the scientist Dr. Saotome creates a series of giant robots that harness the mysterious power of Getter Rays, giving them the strength necessary … Hideo Ishikawa, Naoya Uchida, Kiyoyuki Yanada, Kinryuu Arimoto, Takehito Koyasu, Takako Honda Added on Amazon Prime 2022-08-26.