Modern elite lawyer Shen Jinghong traveled through time and became a fake daughter who was mistakenly taken into the general's palace. When the real daughter returned and the family was convicted, in order to save her adoptive father and family, she was forced to replace the real daughter into the palace and became the "happy" concubine of the tyrant Jamel Xiao. The two reached a contract of "playing the role of a loving empress and granting you freedom and thousands of gold upon completion". With his fierce personality and sharp words, Shen Jinghong turned the harem upside down by attacking the Queen Mother, suppressing the concubines, and exposing conspiracies in the palace. However, he accidentally made the emperor Xiao Jamyan, who was lonely in his heart and could only disguise himself with violence, both funny and cute. The two went from being "allies" who disliked each other, to gradually becoming more fake and sincere as they worked together to deal with the open and secret attacks of the former harem (especially the traitor who had been a domestic servant who had been lurking in the Shen family for many years, sowing discord and trying to subvert the imperial power). In the end, Shen Jinghong not only uncovered the traitor and cleared away the family's grievances, but also assisted the emperor with his unique concept of "rule of law" and became a legendary concubine of a generation.