Shen Zhaoning, an orphan from a poor family, borrowed her daughter to enter the court, using her pen as a blade and strategy as a shield, breaking down the barriers of the family step by step. The mute prince Xiao Huaijin plays chess secretly and watches with cold eyes as she overthrows the imperial court; Lu Jiuyuan, the former minister of the dynasty, lures her into the game, but wants to use her to burn down the entire imperial power; Cui Mingyue, the former enemy, begs for cooperation in front of the truth about the murder; Su Zhiyao, who has been patient for thirty years, has a secret letter in her hand that can let her bloodbath the palace gates at any time. What she wants is not mercy, but to allow women in the world to stand upright in the court from now on.