Su Zhao, a female official in Yeting, was forced into the palace by the regent Xiao Yan as a substitute because she looked like the late queen. On the surface, she is as cold as ice and lets him make fun of her, secretly using her status as a "stand-in" to investigate the clues to the murder of her mother's family; Xiao Yan seems to be a libertine and a butterfly, but in fact, he uses romance as a blade to stir up the court situation. In the mutual exploration of their true feelings with Su Zhao, he gradually changes from "a stand-in for fun" to "she has to be the one". The two worked together to break the palace's poisonous situation and unravel the secrets of the previous dynasty. When the hypocritical concubine's plan, the Queen Mother's prejudice against the "substitute", and the jealousy of everyone in the harem were exposed one by one, Xiao Yan tore up all pretense and pressed Su Zhao on the dragon throne in public: "In this world, I want this woman, and I want this woman even more."
