Jiang Jinxin was the concubine of the Marquis of Qi Yuan, but her life in the palace was worse than that of a slave. When she was fifteen years old, she was treated as a favor by her eldest sister and given to Prince Rui as a maid. The concubine of Prince Rui's palace was fighting openly and secretly, and Jiang Jin was walking on thin ice. In order to save her mother and younger brother who were controlled by her eldest sister, she decided to use strategies to become the master of the harem.