Shi Qingqian, the legitimate daughter of Duke Zhen, was reborn. When she opened her eyes, she saw the fatal scene of handing poison to the regent Xiao Xuanyuan.
In her previous life, she wrongly hated Xiao Xuanyuan and colluded with Prince Ning and his concubine to kill him. She thought she could reach the top of power with Prince Ning and have a perfect love, but she was imprisoned in a dungeon by Prince Ning and her concubine and tortured to death.
After the ghost mission allowed her to glimpse the truth about their past love, she was determined to liquidate the traitor in this life, guard Xiao Xuanyuan, and fulfill her promise in this life.