In his previous life, the protagonist Su Yi was the master of Xuanjun Sword, who was the only one in the wilderness. In order to pursue the supreme swordsmanship, he chose to reincarnate and cultivate again. Unexpectedly, after reincarnation, his most trusted eldest disciple colluded with foreign enemies, and his most beloved youngest disciple also chose to betray him in order to obtain the Nine Prison Sword... 　　After reincarnation, Su Yi's new identity is the bastard of the Su family in Yujing City, Dazhou, a secular country. He has been neglected since childhood and suspected that the death of his mother Ye Yufei was related to his biological father Su Hongli. In order to find out the truth, he resolutely ran away from home at the age of fourteen and went to Qinghe Sword Mansion to practice.