The protagonist Ling Chen is a top "memory mediator". In order to recover his stolen core memory about the death of his sister, he joins forces with the mysterious client Su Qingying. As the investigation deepens, they reveal the terrifying conspiracy of Xiao Yi, the CEO of the giant enterprise "Yongyi Group", to try to build a "perfect" utopia by erasing the negative memories of the people in the city. Ling Chen discovered that his sister's death was the victim of this plan. In the process of fighting side by side with Su Qingying, the two developed a deep emotional bond from being allies who used each other. In the end, Ling Chen gave up his obsession with retrieving his personal memory, chose to face the trauma, and helped Su Qingying destroy the control system of the Yongyi Group and awaken the true memory of the entire city. Although the city has regained its freedom, it is also facing unprecedented chaos, and a clue about the power behind Xiaoyi indicates that a greater crisis is ahead.
