Heroine: Su Qingyan
•Identity in past life: Modern ordinary librarian, gentle and tough, died in an accidental car accident, and his soul was bound to the system
Male protagonist: Gu Yanchen
•Identity setting: The cross-world soul guardian. He was a lover with Su Qingyan in his previous life. He was separated due to a disaster in time and space, and later followed the heroine through time as a "system assistant"
•Each world exists independently, and the flow of time is different from reality (1 day in reality = 1 year in the world)
•The heroine needs to act in line with her "original identity". Excessive deviation will trigger "world rejection" (such as physical weakness, memory disorder)
•The encounter between the male and female protagonists in each world is "guided by fate", but the emotional development must conform to the logic of the world, and there is no forced intelligence setting.
