O-Parts Hunter Vol. 6 (manga)

To defeat the legendary O-Part Mexis, Jio was forced to make a dangerous pact with the evil spirit that dwells deep within his heart. Now that the time has come to resume his battle with the man responsible for shattering his old O-Part--Wise Yury, the Crimson Magician--will Jio's newfound strength aid him in stopping this powerful O.P.T., or will his eternal soul be lost in the process?