Gu Zhaoning, the legitimate daughter of the General Palace of the Ning Dynasty, was forced to marry Xie Yu'an, the "sick son-in-law" of the Shangshu Palace, after her mother died young and her concubine Wang arranged to break off the engagement. In fact, Xie Yu'an is the secret guard pavilion master, and he disguised his identity because of the investigation of the court's corruption case. With the talent and ruthlessness of a female scholar, Gu Zhaoning first defeated his concubine and regained the power of the family, and then helped Xie Yu'an expose the traitor's conspiracy. The two went from testing each other to loving each other, and finally became a powerful "behind-the-scenes couple", completely ending the hidden dangers of the family and the court.
