Lu Changsheng, a monk who had been struggling in the cruel world of immortality for many years, finally fell into a sect battle. However, he was unexpectedly reborn and returned to his boyhood, back to the year before he entered the world of immortality. With the memories and experiences of his past life, Lu Changsheng is determined to change his destiny, make up for the regrets of the past, and protect the important people. He used the knowledge from his previous life to plan ahead, seize resources, and improve his strength, while carefully avoiding the traps and crises in his previous life. In the process, he made new friends and encountered powerful enemies. He continued to grow, explore, and embark on the path of pursuing immortality step by step. Finally, he uncovered the many mysteries of the world of immortality and found his own path. However, the butterfly effect of rebirth has also brought unexpected variables. The future he knew has become blurred, and he must work harder to survive in this world full of opportunities and dangers.