If the price of saving the world were the complete erasure of every trace of everything you had ever loved, what would you choose?
Gu Yunshen, a time repairer, has spent generations guarding the rifts in time in lonely silence. When he breaks a thousand-year-old taboo to save a girl, he becomes a heretic hunted by the forces of order. Lin Xiaoxing, an archaeology student who can sense the scars left by time, is herself the spark that could overturn every rule.
Together with Xuangui, a mysterious white cat who knows the past and future, they are forced to flee against the current of time. They pass through the thousand-year-old star map in the Mogao Caves and slip into the frozen past of an ancient town in the Three Gorges. Pursued by the Temporal Bureau, they gradually uncover the cruel truth behind the imbalance of time and space: a desperate gamble over sacrifice and remembrance.
This is a desperate flight through fragments of memory in search of a way to survive. With the weight of the entire world on the scales, can they find the last glimmer of hope to protect each other and all things at the collapsing edge of time and space?