Yun Ni runs a mysterious inn called the Time Inn in an ancient town in Jiangnan. It appears to be an ordinary guesthouse, but is actually a transit point connecting different eras. Only certain guests can see its true nature.
Born with the “Eye of Time,” Yun Ni can see the traces of time left on objects and the past and present lives of her guests. This ability grows stronger as she runs the inn, though she has no idea where it truly comes from.
The inn welcomes guests from different eras, including a Republic-era schoolgirl and a Tang dynasty musician. Each guest brings a story that spans time and leaves behind a keepsake imbued with the power of time.
A venerable old man with the bearing of an immortal visits and reveals that Yun Ni is descended from an ancient clan of time guardians. The Time Inn is the catalyst for awakening her bloodline, and the keepsakes she has collected are the key to embarking on the path of cultivation.
After learning that she is tasked with maintaining the order of time, Yun Ni must make a momentous choice: stay in the mortal world and continue running the inn, or embark on the path of cultivation. Her decision will determine the future of both her and the inn.