Shen Yuqing, the legitimate daughter of the Shen family who was the most powerful and sober in the world, has been burdened with the family's destiny since she was born - to enter the palace as the queen. An accidental fall into the water at a spring banquet led her to meet the handsome young master Pei Wenjing, the youngest young minister of Dali Temple with the most talent in the capital.
Because the court was thoroughly investigating the case of selling an official position and conferring a title, the two of them joined forces in a tacit understanding. She skillfully maneuvered around the boudoir's house to find key clues for him; he peeled off cocoons in the whirlpool of the court to clear the court. Cherish each other's intelligence, and secretly love each other.
However, the day the case was solved was a turning point in fate. The young emperor adhered to the ancestral system and welcomed her into the palace with an edict to honor her mother. And, in order to avoid suspicion and protect her even more, he invited himself to go to the border, and they were separated by mountains and rivers from then on.
She guarded the palace wall, used wisdom to deal with the disputes in the harem, and treated the world as a virtuous mother, until she was pregnant with a dragon heir and her position as queen was finally confirmed. He guarded the frontier, resisted foreign aggression with strategies, implemented his ambitions with loyalty, and looked toward the capital alone.
One is a queen who cannot break free from the shackles of fate, and the other is a lonely minister who has to let go of her family and country. Inside and outside the palace wall, there are two ends of the world. This love has finally become an old dream of mountains and rivers. Only the white jade hairpin hides the deep love that is unspeakable and can never be obtained.