Eld's Secret Base
In the ancient, legendary past, the peaceful kingdom of Mu is under siege by the war-like Dragonian Empire. Source: crunchyroll
Aired 12/08/1984EP 17 - Eld's Secret Base
1984
GOD MAZINGER
The story is set in modern times, but the twist to the story is that Mazinger is an ancient weapon of the gods, left on earth to battle the evil space gods who have returned to take over the universe.