Oda Kōhai (尾田後輩, Kōhai Oda), formerly known as Shūhen (集編), was a Tenshi agent of The Outsider who was active following the Tougenkyou War and the defeat of Lucifer. The Outsider imparted forbidden knowledge and abilities to Oda and set him on his dark path, claiming that Oda was, in fact, Lucifer's son. Oda travelled to Heisekai with the intention of conquering the realm to use as a stepping stone in his planned invasion of Tougenkyou. Oda's plan was discovered by Maki Zhijun. The pair fought a titanic battle over the seas of Heisekai that resulted in Oda's defeat and banishment to the Dangai, where he lost a great deal of his former strength. Another of The Outsider's agents, Averian, rescued Oda and furnished him with knowledge of the Battle Doll technology. Oda split his soul into five