1972

Japan

Through an exploration of love, loss, and all the darkest corners of human nature, this groundbreaking, influential classic is packed to the brim with stylish violence, nudity, and monsters. Akira Fudo's world is turned upside down when his best friend, Ryo Asuka, comes back into his life spinning tales of horrific tragedy and demonic entities awakening from slumber. In order to help him face these creatures, Akira fuses with a demon, becoming the titular Devilman. Can the two of them prevent the coming apocalypse? Will they retain their humanity and remain the heroes while surrounded by so much darkness?

https://en.m.wikipedia.org/wiki/Devilman