O-Parts Hunter, Volume 13 (O-Parts Hunter #49-52)

As the Olympia tournament continues, Jio squares off against Ikaros to save Ruby. It seems like a fair fight, but Ikaros is not what he seems. Will Jio be able to handle Ikaros's true form? Meanwhile, the Zenom Syndicate moves closer to completing the Reverse Kabbalah... and Cross arrives at Olympia to take his final revenge against Satan.