Taking the first year of Yongzhen as the starting point of the story, against the background of the intertwined palace and rivers and lakes, it tells the story of the ups and downs between Shen Zhiwei, the dancing girl of the Jiaofang Division, and Xie Yunlan, who is in charge of the Qingming Division. Shen Zhiwei's life experience is a mystery, and the silver lock with the three-year Yonghui around his neck hides mysteries. In contact with him, Xie Yunlan discovered many secrets related to the three-year Yonghui. As the plot progresses, they are involved in palace secrets, such as the mystery of the twins in Yonghui's third year, the truth behind the Yeting riot, and the royal power struggle. In a series of thrilling events such as the incident at Jinmingmen and the exploration of the underground palace, the two supported each other and their relationship gradually warmed up. However, they also faced many crises, including the persecution of Shang Yi and the conspiracy of Prince Duan. After going through twists and turns, they solved the mystery of their life experiences, the identities of the twins were confirmed, and the truth was revealed to the world. Finally, in the first year of Jingyun, Shen Zhiwei and Xie Yunlan's relationship sublimated after experiencing the test of life and death. When the power struggle in the palace came to an end, they ushered in their own ending, and the story also ended with memories and hopes.
Intent: a palace past