Lu Yuan, an ordinary college student, accidentally obtained the rebirth system and was forced into endless reincarnation. In every reincarnation, he returns to the past with his memories, trying to change his tragic fate. In the reincarnation, he continued to grow, met partners who accompanied him in life and death, and also encountered powerful enemies. As the reincarnation progresses, he gradually discovers that there are shocking secrets hidden behind the rebirth system, as well as a conspiracy that can subvert the world. In order to save the world and for his own salvation, Lu Yuan embarked on a road full of thorns and started a desperate struggle with the mastermind behind the scenes. The story line intersperses multiple reincarnation worlds, each with unique backgrounds and tasks, and finally converges into a grand story.