Ohga is a title that Osaki gave himself. He prides himself as being the "king of the claw" and desired to someday become a god. To do so, he adopted a life of priesthood and studied how to reach his goal. In his years of training and studying, he heard of a legendary technique called Slaughtering the Self. The technique demands a large amount of blood sacrifices by one's hand, thus granting a cursed yet guaranteed rite of godhood. Interested in the idea, Ohga killed 1,000 people in the span of 15 years. He then met Sheng-Long and trained with him to feed off the exponential power he felt from the monk. In two years time, he gained the power of a dark god as he wanted and deserted the world to revel in his power.