In her previous life, Yun Jinchu paved the way for Prince Jing to compete for the throne, only to be drugged with a fertility-destroying poison by him and the woman he loved on their wedding night. She was left unable to bear children and met a tragic end. When she opened her eyes again, she had returned to the moment before the nuptial wine ceremony. Facing the poisoned cup that had ruined her life, she smiled and exchanged cups with Prince Jing, making him drink the bitter consequences himself. The scoundrel prince is rendered infertile, while his favored concubine becomes pregnant, and a royal scandal erupts before everyone's eyes. No longer willing to endure humiliation, she breaks off the engagement and leaves the prince's residence, then marries Huo Qiguang, a cavalry general. In this life, she will protect the Yun family and make everyone who harmed her step into a deadly trap, one step at a time.