The story tells the story of Lin Qingwan, a concubine in the Hou Mansion, who struggled to survive step by step in the Hou Mansion after her mother died young. She originally just wanted to live a stable life, but for various reasons she was forced to get involved in the power struggle in the Hou Mansion. In the open and covert battles with her aunt, aunt, and sisters, she gradually took the initiative by relying on her wisdom and forbearance. At the same time, she also had a complicated emotional entanglement with Gu Changyuan, the legitimate son of the Hou family. In addition to the internal struggles within the family, it also involves power struggles in the court. Lin Qingwan not only had to face the conspiracies in the back house, but also helped Gu Changyuan deal with the crisis in the court. In the end, with her own efforts, she not only became the mistress of the Hou Mansion, but also helped Gu Changyuan consolidate his family status and find his own happiness. The story shows the cruelty of house fighting and the complexity of human nature, as well as the tenacity and wisdom of women in difficult situations.