In a futuristic world, humanity engages in fierce battles over O-Parts, ancient relics of immense power. Only the rare O.P.T.s, individuals with a unique bond to these artifacts, can unleash their full potential. Among them is Jio, a young boy scarred by tragedy, whose sole trust lies in money. Unbeknownst to him, he harbors within a dormant demon of fearsome might. When Jio crosses paths with Ruby, a spirited girl, they join forces to seek out O-Parts on a perilous journey. Can Jio assist Ruby in her ambition to become a renowned treasure hunter, or will Ruby unwittingly aid Jio in his secret aspiration for world domination?