Xiaolan (played by Lin Xiaozhai), the isatis root spirit who has lived in the herbal village for a long time, accidentally rescued Ajiu (played by Pan Yihong), a medical officer who was able to break through the barrier of the herbal village. Who knows that Ajiu is not only the highly respected "Nine Miracle Doctor",There is also a hidden identity - Jiu Ming, the commander of the Shangqing Division who captured the herbal spirit.Xiao Lan and Ah Jiu unexpectedly form a spiritual mate who share both death and injury. This leads to a cat-and-mouse game, which reveals the bond between the two of them in their past and present lives.