Inazuman Season 1 (1973)

Inazuman is, in reality, young college student Goro Watari, a mutant. He lost his mother as a child and had other dark moments in his childhood (he had a childhood girlfriend named Teresa who was taken away by an American soldier during the US occupation of Japan). But when the Neo-Human Empire begins its attacks on mankind with its Fantom Army foot soldiers and mutated monsters, he puts his psionic powers to the test.