The World Time Observer Organization traps important figures in a 24-hour cycle through time anchors to prevent key historical events from happening. People trapped in a time loop will retain vague memory fragments, forming a sense of déjà vu. Strong emotional fluctuations may break through the constraints of time and become a key variable in breaking the cycle. Emergency doctor Shen Zhao rescued Lu Zhiyuan, a patient injured in a mysterious car accident on a rainy night, and discovered that the pocket watch he was carrying actually displayed photos of his childhood. Every time Lu Zhiyuan dies, the day will be restarted. Shen Zhao gradually awakens his cyclic memory and discovers that the two have a deeper fate.
