Shi Qingqian, legitimate daughter of the Duke of Zhenguo, is reborn. The moment she opens her eyes, she finds herself in a life-or-death situation, handing poison to the regent, Xiao Xuanyuan.
In her previous life, she hated Xiao Xuanyuan unjustly and joined forces with Prince Ning and her half-sister to kill him. She thought she would share the height of power with Prince Ning and live happily ever after, but he and her half-sister instead imprisoned her in a dungeon and tortured her to death.
After the messenger of death let her glimpse the truth of their love in the past, her obsession refused to fade. In this life, she would settle accounts with the villains, stay by Xiao Xuanyuan's side, and fulfill the promise they made to each other.
