Mr. Gu, the eldest son of the family, welcomes the young man with open arms. He tells him that he has learned a lot in the past few years, and that it is strange to have him as a guest. He says that if he were to kill him, he would never know who shot him. He also says that he cannot bear to see his father's hands stained with blood, as he is afraid that the wound will become a wound that will kill him. The young man tries to calm him down, but Mrs. Gu interrupts him. She says that she has just injected him with some kind of medicine to help him regain his strength. She tells the boy that he is the president's "personal doctor" and that he will recover soon. The boy asks if he has ever wanted to help anyone, no matter how good or bad the person was. He wants to understand more about the man, so he helps her. She explains that the man is the "main personality" . He may act indifferent, but it is the opposite. If someone bullies you, he will avenge you. The second personality is cheerful, but also an "idiot." The fourth personality is "qiyan" , which is formed when he is wounded by a gun. He will always want to kill anyone that is related to the incident.