Modern surgeon Su Yunshang accidentally traveled through time and became the daughter of an ancient criminal. She relied on the medical space system in the ancestral jade pendant to survive in the desperate situation of the harem. From a humble maid in the Huanyi Bureau to a female doctor in front of the imperial court, she used modern medical skills to resolve palace conspiracies, cure the emperor's chronic illnesses, and also uncovered the mystery of her father's unjust case twenty years ago and the "Collection of Strange Diseases" left behind by the time traveler. When the dragon-patterned blood jade resonates with the jade pendant, her fate is closely intertwined with that of the cold and stern emperor Jamel Xiao. During the showdown at the imperial hospital, the rescue in the epidemic area, and the incident of the concubine's false pregnancy, she challenged the feudal medical ethics with penicillin and silver needles, and counterattacked the deep palace with benevolence and benevolence. From the Cold Palace to the Golden Palace, a legend of a doctor spans time and space. Under the guidance of the blood jade secrets and merit system, the immortal legend of Feng Lin is written in the world.