Yvonne Yun attempts to assassinate Jasper Tu, the Tyrant Emperor. Upon her attempt, they swap souls. In the emperor's body, Yvonne governs and fights corruption. Jasper, in her body, becomes Concubine Miao, facing harem schemes. They form an alliance to dismantle Prince Ze and Yun family conspiracies, bickering and pranking. Their swapped lives lead to hilarious challenges as they work to build infrastructure and empower women.