The imperial power has fallen, the situation in the court is in turmoil, and the battle for the right to inherit the throne has become fierce. Murong Xuan, the Marquis of Zhenbei, holds a large number of troops, but he is feared by the royal family and ostracized by courtiers because he is not involved in party disputes. He is trapped in an isolated and helpless situation. He can only protect himself step by step and secretly plot to calm down the troubled times.
Su Yao, the daughter of a criminal official of the previous dynasty, harbored a blood feud that destroyed her family in her heart. With her astonishing ingenuity, she had been dormant for many years and joined Murong Xuan in the name of an aide. She looks gentle, but in fact she has a hidden edge, and every move she makes is precise and ruthless, both for revenge and to find hope in this treacherous court.
One is a powerful minister who forbears and plans for the country, and wants to use his power to control the country; the other is a female counselor with unparalleled wisdom, who is willing to use strategy to avenge blood. They went from testing each other and getting what they wanted, to gradually developing trust and bonds through court games, palace intrigues, and battlefield confrontations.
The poisonous plots in the harem, the conspiracy of the previous dynasty, the plots of enemy countries, and the strife of factions are all their chess games; the support of people's hearts, the transfer of military power, and the gain and loss of cities are all their bargaining chips. When power schemes conflict with sincerity, and revenge conflicts with righteousness, will they stick to their original aspirations, use "Xuan Mou Yao Ce" to break the deadlock and determine the outcome, or will they get lost in the whirlpool of power and eventually become each other's pawns?
This grand plot of power, with the world as a chessboard and people's hearts as bets, will ultimately determine the outcome in a battle of swords, shadows, and wits.