In this chapter, we learn more about Zhangyi and his relationship with Dr. Caixuan. We learn that he is a graduate student in the field of computer science, and that he has died in an accident. We also learn that the man who killed Caixin's sister, Hu Jia, was an old friend of Zhangzi's, and this friend has been captured by rui's forces. We are also told that the old friend, who we learn is called "Libai," has been caught and will be tortured for the rest of his life.