As the strongest villain in the former Infinite Stream, Li Han has his hands covered with blood and betrayal. After his death, he was captured by the "Redemption Assessment System" and forced to perform the most absurd task: traveling through various worlds to save those souls trapped in despair in exchange for rebirth. His latest receipt is for a girl Su Xiao who is stuck in the cycle of suicide and full of resentment. Time resets every day, and death begins again and again. Li Han originally thought this was another simple strategy and redemption, but gradually discovered that this fragile target was the core of the curse of the world cycle. And he, the "redeemer" who was sent to save her, became the only variable that she remembered during countless repeated sunrises and sunsets. When the redemption progress bar began to reverse and the system warned [Warning: The executor's emotional link is overloaded and there is a risk of assimilation], Li Han realized that this mission was not for him to redeem her, but for them to sign for each other in an endless cycle and become each other's only light in the abyss.