Synopsis：In the fifteenth year of Qingshuo, the Ninth Princess of Zizhou, Li Conghuan, is sent to marry the Crown Prince of Qingshuo, Mo Heng, and the entire kingdom is filled with celebration. Yet no one knows that Li Conghuan comes only for revenge. She was once deeply in love with Mo Jin, the Second Prince of Qingshuo, but on the day she gave birth, she witnessed her mother consort and her newborn child being killed by Mo Jin’s subordinates. With her closest family brutally slain and her beloved betraying her, Li Conghuan swears upon her return to take revenge with her own hands for her mother and child. When they meet again, her former lover has become the dignified Crown Princess, and Mo Jin cannot believe that Li Conghuan would drive him to death for the sake of power, harboring deep resentment and bitterness toward her. One repeatedly attempts assassination, while the other probes step by step. Through their constant clashes and interactions, they eventually discover that everything stems from profound misunderstandings and misplaced blame.