Ran Yan, an unfavored daughter of a rich family in Suzhou, studied autopsy at early age for investigating the real cause of her mother's death. After …
Ran Yan was kidnaped by a group of Huns for an autopsy and got into trouble. A young man who was looking for the Pearl of Sui saved her life without revealing his identity. Ran Yan, during running away from a marriage decided by her parents, accidently helped Xiao Song to solve the cause of death of a wanted man.
Xiao Song was also chasing the Pearl of Sui. He found Ran Yan's talent in autopsy and asked her to work for him. On the other hand, Ran Yan met the man who saved her life again and found him seriously injured. She secretly took him home and treated his injury.
Ran Yan finally agreed to work for Xiao Song. In order to investigate a case, Xiao Song pretended to be a drug dealer and was taken into the nest of a drug seller.
Xiao Song's subordinate, Bai Yi, asked Ran Yan to find where Xiao Song was taken to and to save him. Ran Yan pretended to be a musician and got into the nest where Xiao Song was. The two solved the case together.
In order to escape from the marriage her parents decided, Ran Yan went to the man who saved her life and asked him to kidnap her fiancé. He promised her, however on the arranged marriage day, a group of people came to pick her up as a bride. Ran Yan realized later on that it was a fake group managed by Xiao Song.
Xiao Song asked Ran Yan to do an autopsy for 4 bodies. After that Ran Yan was kidnapped and saved by the mysterious man who promised her to kidnap her fiancé. Ran Yan fainted, and when Xiao Song tried to stop the man from taking her away, the man told Xiao Song that he was Ran Yan's fiancé, Su Fu.