Lin Xiwan, who has been studying medicine for ten years in Xuan Zhen Guan, faced the assassination and plotting of the Hou family by her stepmother Zhao Ruyi in order to save her mother Zhao Xue who died due to injustice. When she was in danger on a rainy night, she rescued Xiao Che, the orphan of the late prince, who was poisoned by the "Blue Falling Yellow Spring". The two made a deal: she used her medical skills to detoxify him and prolong his life, and he used his power to help her gain a foothold in the capital. From a private free clinic to becoming the "Lin Family Huiyang", to overcoming prejudices and becoming the first female imperial doctor in Tai Hospital, to founding a women's hospital and writing medical books handed down from generation to generation, Lin Xiwan relied on her medical skills to break up family feuds, solve epidemics and chaos, and uncover old cases in the court; Xiao Che used her to help gather the old troops and protect the family and the country in the storm of seizing the rightful son. Yun Mengze's life-and-death contract and Gong Bianye make decisions together, and the supporting characters also show their arcs. In the end, the two gave up the imperial power and returned to seclusion, passing on their medical skills and interpreting the exciting legend of "men and women working together".
