Shen Li, the concubine of the Duke of Zhenguo, mistakenly trusted her sister and the prince in her previous life, and was sent to the palace as a substitute for her sister Shen Huayue. She devoted all her efforts to help the prince ascend the throne, but was eventually sentenced to death by the deposed queen, and the whole family was executed. After being reborn and returning to the night of Jiji, she found that her life had been replaced - her sister-in-law's "replacement" had been prepared and was about to take over her destiny and enter the East Palace. In this life, she was bound to the "Palace Fighting System" and worked every step of the way to marry Xiao Jue, the ruthless God of War, Huai Wang, who was jealous of the emperor. After her marriage, she used the system to see through people's hearts and use tactics skillfully to gain a foothold in the palace and the court. Not only did she expose the conspiracy of her sister-in-law and the prince, but she also assisted Prince Huai in breaking up the shocking conspiracy of the royal family. In the end, she became the irreplaceable "concubine" and joined hands with Xiao Jue to reach the top of power.
