The orphaned princess, Qing Que, falls in love with the wrong person and is reborn into a courtesan. During a fateful encounter, her enemies gather at the Mu Mansion, leading her to orchestrate a scheme to marry her father's killer, Lord Mu. The valiant and cunning General Yun Huan, who once killed his first love, suppresses his feelings to become a son-in-law in the Mu Mansion, only to discover that his new mother-in-law is his former lover. Living under the same roof, the mother-in-law and son-in-law conceal their past love, each harboring secrets and navigating treacherous waters. As the truth of grievances is unveiled, the deep affection is shown. Amidst misunderstandings and a complex web of fate, can the lovers resume their love and fulfill the promises of the past?