Song Yue, the legitimate daughter of the Duke of Jing's Mansion, spent ten years in obscurity at a remote villa after being forced to drink a dementia-inducing drug as a child. Disguised as a simpleton, she was actually the daughter of Princess Jiahua, who had been sent to Nanjiang for a political marriage a decade prior. When the Emperor of Beichu, her mother's former lover, ordered her return to the capital to marry the Prince of Zhennan's Son, Song Yue's guardians, Zhang Dazhu and Wang Guihua, conspired with Nanny Fang to ruin her chastity and prevent the marriage. However, Song Yue had already recovered her senses and, upon being attacked, killed Zhang Dazhu and outsmarted Wang Guihua and Nanny Fang by trapping them in a fire, making it appear as though she had perished in the blaze.
Fleeing to Tianshan Temple, Song Yue retrieved a jade pendant and a letter from an old monk, which granted her command over the Xuan Ying Team, an elite shadow guard unit left by her mother. She learned that her mother was returning from Nanjiang and that her brother, Song Hengchuan, was poisoned and required a regular antidote distributed by the Emperor's guards. Deciding to return to the capital to reclaim her life and rescue her mother, Song Yue arrived at the Duke of Jing's Mansion during her own funeral, shocking her family who believed she was dead and defiled. She revealed herself alive, exposing the lies surrounding her and the plot against her.
Upon entering the mansion, Song Yue faced immediate hostility from her half-sister Song Yao and stepmother Yuan Fuling, who sought to replace her as the bride for the Prince of Zhennan. Her brother Song Hengchuan, who had been raised in luxury and favored by Yuan Fuling, viewed Song Yue as a disgrace and attempted to beat her, only to be stopped by her guards. Song Yue systematically dismantled the power of her enemies by exposing the fake antiques in her assigned courtyard, proving her discernment and authority. She forced the Grand Madam to punish those who mistreated her and claimed her mother's former residence, Yuehua Pavilion, from Yuan Fuling.
As Song Yue established her position, she navigated the complex political landscape involving the Duke of Jing, who was despised by the Emperor, and the Eighth Prince, Zhao Zhiyan, who had secretly protected her. The core conflict centered on Song Yue's struggle to survive in a hostile household while preparing for the arrival of her mother and the impending marriage alliance. She refused to be a victim, using her intelligence and the loyalty of the Xuan Ying Team to counter the schemes of Yuan Fuling and Song Yao, who continued to plot against her legitimacy and reputation. The story follows her journey from a neglected outcast to a formidable figure within the Duke's Mansion, setting the stage for future confrontations with her family and the royal court.
