In this chapter, we learn that Dr. Lanzhou was once a student of the School of Medical Sciences, also known as the Guizhou School of Medicine, and that he is the grandson of Guizhou's founder, Doctor Lanzhou, who is considered one of the five great doctors in the world. Lan's grandfather was a poor man who fell off a mountain and was saved by his master, who became a doctor and founded a pharmaceutical company. After his grandfather's death, no one in the family believed in the school of medicine, which was able to heal the dead and bring back the living.