Li Xuan, a disciple of the down-and-out sect, accidentally obtained the cultivation assistance system and started his counterattack. With the help of the system, his cultivation speed increased rapidly and his strength increased rapidly. At the same time, he was also involved in various conspiracies and battles in the world of cultivation. He got acquainted with the innocent saint Su Waner. The two were attracted to each other and faced challenges together. He also launched a fierce confrontation with the ambitious demon successor Zhao Wuji. As the plot develops, the mystery of Li Xuan's life experience gradually emerges, and he finds that he shoulders the important task of guarding the world of cultivation. In the end, with the help of the system, Li Xuan defeated the evil forces and became a legend in the world of cultivation.