The doctor explains that the only way for a person to survive is to get an antibody, which is only a tiny chance of survival. He also explains that he is the one who gave the code to prevent the earthquake. The doctor says that he would have died even if he had given the person the choice to live or die. He tells the doctor that he has been very cooperative in keeping track of feng's condition. He has only one week to live, so he has decided to move into the family's house. He asks the family to prepare soup for him to recover his health. He says that although he is confident in medical school, he doesn't know advanced mathematics or physics. He wonders where shangzhen is. She seems to be in a relationship with a man named Mengru, and he says that she is a "disgusting mistress" . He then asks the doctor if he can tell him who is to blame for the change in zhen.