The modern Xue Qingyin accidentally traveled through time and became the female supporting character who met a tragic end in the ancient novel "The Only Favorite Princess". In order to change her destiny, she gave up the male protagonist of the original book and approached the ruthless King Xuan He Junting, hoping to use his power to save her life and become a wealthy widow. In the early days of their marriage, her coquettishness made He Junting misunderstand that she loved him deeply and he treated her tenderly and dotingly. However, due to the competition for interests between the male protagonist of the original book and the forces behind it, Xue Qingyin continued to prevent Xue Qingyin from escaping the fate of the original book, and destroyed her relationship with He Junting. The countdown to He Junting's life experience is approaching. Once exposed, he will be killed. All forces in the palace are also full of hostility towards them. At the same time, He Junting faced the dilemma of revenge or protecting Xue Qingyin, and Xue Qingyin's plot against He Junting's feelings was discovered, causing a misunderstanding. But the two supported each other in difficulties. Xue Qingyin relied on modern wisdom to gain a foothold in the court, and He Junting also regarded her as light. In the end, He Junting succeeded in revenge and ascended to the throne of God, and Xue Qingyin became the queen. The two went from getting what they needed to truly staying together.