In the third year of the Yuan Dynasty of the Dasheng Dynasty, Su Shen, the former imperial censor, was wronged and his family was exterminated. His daughter Su Qingwan stepped into the deep palace of Zhuqiang as a sin slave, waiting for an opportunity to reverse the family's case. At this time, the imperial power fell into the hands of the regent Xiao Yuan, and the seventh prince Xiao Jin, the nominal heir to the throne, appeared to be unruly, but in fact secretly planned to regain the power.
Xiao Jin accepted Su Qingwan as a pawn, but was attracted by her tenacity and resourcefulness in the repeated confrontations of power. In the process of using Xiao Jin, Su Qingwan also got a glimpse of the struggle and affection behind his cold appearance. The two went from testing each other to developing a secret love, but they were trapped in the whirlpool of the struggle for imperial power - Xiao Yuan's increasing pressure, the truth about the family's injustice, and the old grudges over the tragic death of their mother and concubine pushed them to the edge of confrontation.
When the palace coup broke out and Xiao Jin fought Xiao Yuan, Su Qingwan discovered that her fate was already firmly tied to Xiao Jin's machinations. She holds evidence that is enough to overturn the court, but she has to make a life-or-death decision between family hatred and the love of her heart. In a chess game where love is the bait and life is the bet, they are each other's armor and the sharpest blade. Finally, at the peak of power, they leave behind a sad song of "win the world, lose each other".
Purpose: grudges between family and country