Artist : Seishi Kishimoto
Jio is a young boy interested in achieving one thing: to conquer the world. He meets the treasure hunter Ruby Crescent and soon learns about the amazing weapons O-Parts and those who are able to use these weapons O.P.T.S. Jio 's dark and lonely past lead him to trust nothing in the world except for money and himself however he later finds himself travelling with Ruby (rather reluctantly) as her bodyguard. After a short time together, Jio and Ruby part ways (as Ruby runs out of money to pay Jio for being a bodyguard) but almost immediantly Ruby is kidnapped by the man with 666 on his forehead, Satan. Jio attempts to rescue Ruby, realizing that he himself is a O.P.T.S. but is beaten quickly by a strong O-Part. Immediantly after this, the numbers 666 appear on Jio's forehead, revealing that Jio is the real devil Satan and instantly defeats the fake Satan. Jio decides to continue travelling with Ruby until she can pay him for being a bodyguard.