Z-O is a created biological experimental subject made by a corrupted priest and scientist. He looks like an ordinary human but he possesses special powers that make him a monster inside. To live as a human, Z-O escaped from the lab when he was young, and lived as Ji-oh but lived his whole life being chased. Tired of being chased and to find an answer to live as a human, he goes back to the lab to face the reality. However, the reality was much more cruel. He has to choose now whether to be a monster, or a god who can control humans.
