Dali Temple Minister Shen Yi was involved in the case of King Jin and his family was brutally destroyed. His daughter Shen Guan used the identity of Qin Guan, the ninth lady of the Qin Mansion, to flee to Jingzhou.Qin Guan, who was originally weak and bullied, changed his temperament significantly. He not only could cure diseases and save lives, but also could detect cases. He also cured the aunt, sister and sister of the Qin family, and obediently.

During the investigation, Qin Guan met Prince Rui Yan Chi. Yan Chi was determined to overturn the case for King Jin, and coincided with Qin Guan's goal of being a father. The two returned to Beijing together and collaborated on the way to solve various strange cases.After returning to Beijing, an unexpected skeleton was re-reported by the case of King Jin. Yan Chi and Qin Wan slowly approached the truth of the case and discovered the shocking secret hidden in the palace.