From saving her mother in a poor family to inheriting a legacy of healing the world. A Yao lives in a poor and backward household, and her mother suddenly falls ill. While seeking treatment at a medical clinic, she meets the clinic's director, who tells her that the illness can only be treated at its source, not cured completely. The little girl's desperate pleas move the director, who takes her on as an apprentice and gives her medical texts to study. Six months later, master and apprentice work together to cure her mother. From then on, the girl becomes fascinated with medicine. As she grows up, her medical skills improve steadily. She travels from her small town to the imperial palace, curing all kinds of difficult and unusual illnesses. The palace rewards her with the title of Medical Knight and a travel pass. After treating an epidemic, she is ordered to visit towns across the country and treat their local illnesses. From then on, with a medicine chest and a travel pass, she journeys from town to town, treating the sick, writing medical texts, and taking on apprentices so that the art of medicine can be passed down.
