She remembered everything but who she was.
Shen Qingwu, the daughter of a declining family, was imprisoned in the "Lingqiu Pavilion" on the side of the palace because of old family sins - it was both the royal archives and a prison for the female relatives of guilty officials. For three years, she had been meek and forbearing, but in the middle of the night when no one knew about it, she used her innate photographic memory to silently memorize all the ulterior secrets in the pavilion.
Until she deciphered the secret message left by her mother in the yellowed embroidery book: "Under the swing frame, there is a shadow in the mirror, and the ghost of twenty years has not disappeared."
At the same time, Xie Yunchi, the youngest director of Tiangongyuan, was ordered to repair the hydraulic mechanism of Lingqiu Pavilion. This rumored cold-blooded mechanical genius suffers from "cardiopia" which prevents him from recognizing human faces. When his and Shen Qingwu's fingertips touched accidentally, they saw fragments of each other's memories in an instant.