Jiang Zhili, a terminally ill woman from the modern era, transmigrates into the body of a neglected concubine's daughter in the Jiang household. The original host was pushed into a lake by her legitimate elder sister, Jiang Luoyu, for refusing to serve as a substitute to enter the imperial palace. Upon awakening, Jiang Zhili activates the 'Many Children, Great Blessings' System, which tasks her with bearing at least four offspring for the current emperor. Recognizing the dire situation, she purchases a Body Tempering Pill to restore her health and a Beauty Pill to enhance her appearance, transforming from an ordinary girl into a stunningly beautiful woman. She also acquires a Concealment Pill to hide her true looks from her abusive family and an aphrodisiac pill to ensure the emperor's attraction.
Jiang Zhili confronts her family, demanding to be registered as a legitimate daughter and her mother, Liu Yan, be elevated to secondary wife in exchange for entering the palace. When her father, Jiang Zhen, and stepmother initially refuse, she threatens to expose their scheme to deceive the emperor, forcing them to agree. Before her official entry, Jiang Zhili sneaks out of the mansion and encounters the emperor, Pei Lin, who is ambushed and injured while hunting corrupt officials. She rescues him, hides him in a cave, and tends to his wounds. During the night, the effects of the aphrodisiac pill and the emperor's drug-induced state lead to a passionate encounter. Jiang Zhili leaves a sachet behind before returning to the palace, while Pei Lin becomes obsessed with finding the mysterious woman who saved him.
Jiang Zhili enters the palace as Noble Lady Jiang, residing in the remote Xunyu Hall. Her beauty is concealed by the pill until she reveals it to her maid, Xiaotao. The emperor, neglecting his duties and the harem, continues his search for the woman from the cave, driven by a portrait he had painted. The Noble Consort, jealous of the emperor's indifference and the Empress Dowager's pressure to produce an heir, begins her own search for the mysterious beauty. Jiang Zhili navigates the treacherous palace environment, aware that her fate is tied to her ability to conceive and secure her position. The story sets the stage for a conflict between Jiang Zhili's mission to bear the emperor's children and the political machinations of the court, as well as the emperor's growing fixation on her true identity.
