In the "Diezhang City" that folded into twenty-seven heavens, the deliveryman "Refracting" on the bottom floor accidentally picked up a mysterious book key that could smooth out the wrinkles in space. When the upper level quietly absorbs the foundation of the lower level with "slow time" and "light gravity", he joins hands with mechanics who despise flashy and botanists who care about the soil, leveraging the tension of space with earthly skills, and stretching the overturned city into a symbiotic "ring of caressing the dust". This is a song of balance played with the folds of space as its strings and the collaboration of all living beings as its score.
