Choujinki Metalder is a Japanese tokusatsu series produced by Toei Company, which aired in 1987. It follows the story of a cyborg hero, Metalder, who battles against the evil Neros Empire. The series is part of the Metal Hero franchise and is known for its action-packed scenes and engaging storyline, blending elements of science fiction and adventure. Metalder's mission is to protect humanity while uncovering the mysteries of his own origins.