After Lin Wanxing, a modern emergency doctor, got into a car accident, his soul was transformed into Su Yingxue, the unpopular princess of the Duan Palace of the Dayin Dynasty. Faced with the harsh living environment, the indifferent prince and husband, and the covetous forces from all sides, she decided not to be a transparent person anymore. With superb modern medical skills and an independent and self-reliant modern soul, she started to save herself in the backyard, step by step to treat nobles, reform medical care, and accumulate connections and wealth. Not only did she win the prince's admiration and sincerity, she also found her own path of counterattack of "the benevolence of a doctor" in the turbulent palace and court, and finally gained love, career, and freedom.