Jetter Mars (1977)
Original title: ジェッターマルス
Jetter Mars is a 1977 Japanese-language sci-fi & fantasy series. It stars Shinji Yamada, Joji Yanami and Kosei Tomita.
Mars is a boy robot named as the god of war, created to be a military weapon, but adopted as a human child. In a distant future, when people and androids live together, he ventures to discover his true nature.