The story takes place in a mountain village in the southwest border of my country in the 1960s and 1970s. The doctor Lao Zhang used simple herbal medicine to treat difficult and complicated diseases and was highly respected. The work revolves around the secrets of medicinal herbs, in which the key spiritual heart grass grows in dangerous places, and its picking requires specific times and rituals.
A mysterious stranger comes to the village and tries to steal herbs for profit. Lao Zhang strengthens his protection and decides to pass on the secret to the kind-hearted young man Xiao Li. However, flash floods destroyed most of the herbal growing areas, and Lao Zhang and Xiao Li embarked on an arduous journey to find new places of origin.
Along the way, they encountered many difficulties such as getting lost, food shortages, wild beast attacks, and falling into traps. They also encountered unexpected discoveries and hope brought by the ruins of their predecessors. In the end, they successfully found a new origin, returned with herbal medicine to treat the villagers, faced the jealousy and doubts of their peers, and considered the integration and development of traditional medical techniques and modern medicine. Xiao Li gradually grew up and the legacy continued.
The entire work shows the tenacity, wisdom and kindness of Lao Zhang and Xiao Li in the process of protecting and passing down the secrets and medical skills of herbal medicine, and depicts their legendary experiences full of challenges and hopes.
