From saving his mother from a poor family to helping the world and passing on the legacy. Ayao lives in a poor and backward family, and her mother suddenly falls ill. During the treatment at the medical center, I got to know the director and was told that this disease can only treat the root cause, not the root cause. The curator was moved by the little girl's pleading, and at the same time he accepted her as his disciple and gave her to the medical book to study. Half a year later, the master and apprentice worked together to use medical skills to cure the mother. The little girl became obsessed with medicine. As he grows, his medical skills become more and more sophisticated. From the small town all the way to the palace, he was able to cure a variety of difficult and complicated diseases at the same time. He was rewarded by the palace and made a knight of medicine and a token of passage. After treating a plague, he was ordered to go to small towns across the country to treat local difficult and complicated diseases. From then on, one medicine box and one token paraded through small towns across the country to treat local patients and publish medical books to recruit apprentices so that medical skills can be passed down.