This book focuses on the strategies of the concubines and palace maids in the harem. The concubines have schemes, and the palace ladies have even more schemes. There is a pair of sisters, but they have different surnames. One day, the elder sister Lin Meier becomes the emperor's favorite concubine, and the younger sister Geng Gaoyu also wants to become the emperor's concubine. The younger sister always suspected that she was not her mother's biological child, which meant that they were not biological sisters, so she teamed up with Concubine Nian to murder her older sister and cause her to miscarry. The elder sister was disheartened and chose to leave the palace and become a monk. However, due to Concubine Nian's conspiracy, the temple was burned down and her good sister Lian Xin was burned alive. And she also escaped death. He vowed to avenge Lian Xin and the stillborn child. Three years later, when she returned to the palace under another identity, her sister became the most favored concubine of the emperor. Her personality changed drastically. On the surface, she had a deep sisterly love, but behind her back, she was framed by a conspiracy. Facing various calculations in the harem, she no longer had the same fear and escape as before. In the end, she became the longest-lived empress dowager in history.