Inazuman (1973)

Watari Goro: Inazuman Dies!? (1x21)

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One day, the people of Onino Village disappear. When Goro goes to investigate, Bamboo Bambara shoots him with a poisoned arrow. He is "saved" by people who are really Neo-Humans and is in a state of suspended animation after being drugged. When Satoko and the others arrive, they see him being buried, but Satoko doesn't believe he is dead…