Introduction: Fei Jing followed the master of the thirteenth knifemanship among the Thirteen Auspicious since he was a child. Yan thirteen hoped that every child could become talented. There was no distinction between high and low status in the Thirteen Auspicious. Whoever had the ability, could take the throne. This formed the situation that there were spies all around. Whether husband and wife or children, they might be their enemies. Yan thirteen hoped that Fei Jing would not become a big tyrant. Before his death, he informed Fei Jing of the existence of Dao Wudi, so that Fei Jing left the Thirteen Auspicious and sent the霸dao to Dao Wudi...