Due to the increase in rent, sophomore Su Yao bought a simple pocket watch on the second-hand market with hands that rotated in reverse and engraved with strange patterns. Since then, she has been involved in a cross-time and space turmoil - the pocket watch repeatedly disappeared and reappeared, anonymous text messages warned, shadowy surveillance, a figure similar to her from the Republic of China appeared in old newspapers in the library, and the mystery was shrouded in layers.
The mysterious guardian Lu Chen reveals the truth: the pocket watch is an artifact that can reverse time. Abuse will cause "folds of time and space" that swallow everything. He is the descendant of the guardian artifact, and the opposing "countercurrent" attempts to use it to tamper with the past. Su Yao also learned that she and Su Wan, the holder of the pocket watch from the Republic of China, are "same time and space partners", and her life energy is the key to activating the pocket watch.
In order to prevent the collapse of time and space, Su Yao joins hands with her friends Lin Yue and Lu Chen: they find the seal clue of "Bell Tower + Full Moon Night" in the archives, enter the "Fragments of Time and Space" to have a cross-time and space dialogue with Su Wan, and finally confront cousin Lin Yue, the leader of the "Countercurrent", in the secret room of the old bell tower on the full moon night, and successfully seal the pocket watch.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.