For several months, Maomao, a 17-year-old girl, was kidnapped and held as a servant in the ancient Chinese imperial court. A woman related to the deceased previous prince has been keeping a close eye on her. Despite the unfavourable circumstances, MaoMao remained level-headed and diligent, diligently working until her servitude came to an end. However, her course changed the moment she discovered that the emperor's two infants were critically ill. Using her pharmaceutical expertise acquired in the impoverished red-light district, she acted covertly. Although Maomao attempted to remain inconspicuous, her abilities captured the attention of Jinshi, a powerful eunuch. As such, she found herself in the emperor's inner circle, applying her unique personality and knowledge to unravel various medical enigmas and build a reputation for herself. all while another outside the palace has been keeping tabs on who is around MaoMai and where she goes.