Devilman is a classic anime series created by Go Nagai, which first aired in 1972. It follows the story of Akira Fudo, who merges with a demon named Amon to become Devilman, possessing the strength of a demon while retaining a human heart. The series explores themes of morality, identity, and the struggle between good and evil in a world threatened by demonic forces. Its unique blend of horror and action has made it an influential and enduring work in anime history.