Gu Qingfeng was adopted by the Gu family in her childhood, and at eighteen was framed by someone and unjustly imprisoned for five years. In prison she diligently studied medical arts, mastering exquisite needle skills. After release from prison she lived in anonymity practicing medicine in a village, gaining growing fame due to curing the young master of the Lin family, while secretly gathering criminal evidence of money laundering by the Gu family. In order to curry favor with the powerful and wealthy, the Gu family actually had their adopted daughter Gu Weiwei forge a birthmark and falsely claim the name of the divine doctor. Gu Qingfeng played along to trick them, publicly presenting a complete evidence chain at a high-society banquet, exposing the Gu family's years-long conspiracy, making the truth clear, and finally bringing those involved to justice.