On a hot summer day, Chen Jinyin, the daughter of a down-and-out pharmaceutical family, accidentally fell and was transported to the epiphysis by modern medical research scientist Chen Ruohua. With her unique family knowledge and pharmacological and toxicological theories that transcended the times, she was admitted to the Imperial Medical Office of the Tang Dynasty and became the youngest female medical officer in history. She walked around the palace with the word "Ruohua", dealing with the undercurrents of the three forces of Empress Wei, Princess Taiping, and the future Xuanzong, and repeatedly solved strange poisonous mysteries. From the dregs of medicine in the cold palace to the delicacies of the royal banquet, she traced the truth from every deviation in the properties of the medicine, but found that every "accident" she cured could not change the helplessness of historical figures.
