Xie Qiwei married the fifth prince Xiao Yan who was about to die. She understood in the sedan chair: This was not a marriage, but a stepping stone for the whole capital. But no one knew that she was a trader in her previous life, with two columns in the ledger and three columns in the hearts of the people. The three thousand taels missing from the dowry bill were reconciled on the spot. On their wedding night, it was discovered that her husband's "illness" was fake - the illness was actually the same as hers. What she wants is not the status of a princess, but to use the palace as a chessboard: her stepmother's recruitment, the Queen Mother's murderous intentions, the poisonous plots of the East Palace, and the court's tricks are all recorded in her account. On the wedding day, she was not helping the sick young man to ascend to the throne, but transforming herself from a chess piece into a chess player - it was easy to help this sick young man to the throne.