The modern Xue Qingyin accidentally transformed into 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 rich widow after his "untimely death". In the early days of their marriage, her coquettish overtures made He Junting misunderstand that she loved him deeply and he treated her tenderly and dotingly. However, the male protagonist and other forces in the original book continue to hinder her from establishing a foothold in the palace due to their interests. Xue Qingyin relied on her wisdom to cope with the pressure of the palace, while at the same time she was in a dilemma between love and self-preservation. Later, when the secret of He Junting's life experience was exposed, and faced with being hunted, Xue Qingyin firmly became his "heart protector". 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 wanted to truly staying together.