The power of the Dayin Dynasty was in conflict, and undercurrents were surging in the rivers and lakes and the court. There are three pillars in the world, and the royal family, vassals, and aristocratic families have been competing for hundreds of years. Xiao Chenyuan, the betrothed prince, is in charge of the prison. He appears to be cold and taciturn, but in reality he is secretive, skilled in medicine and poisoning, and strategizing. Xie Zhaoning, the most talented girl in the south of the Yangtze River, was ordered to go to Beijing to get married. She was married to an idle prince in name, but was actually a pawn of the family. She is smart and out-of-the-box, good at pretending to be stupid, and proficient in strange poisons and secret techniques. She is the "Mr. Qingluan" who is feared in the world. The two of them each had their own plans, and there was a turbulent undercurrent from the moment the marriage was agreed upon. In the aristocratic circle of the capital, there is false love, and best friend Shen Yunci hides a knife in her smile, colluding with the ninth prince Pei Jingheng to seek the throne. Palace secrets and old cases are surfacing, and a game of wisdom and courage in the name of love quietly unfolds. Above the court, who is playing chess? In the bridal chamber, who is tempted first?
