Back in Ning City, the doctor tells Zhuang that he's finally home. He's going to try to find out if Zhuang's parents abandoned him. The doctor says he'll put some ointment on Zhuang to make him feel better. Zhuang says that every time he thinks about his parents, the ointment works wonders. He tells the doctor to get out of the house. He says that the next day, he can put some on for Zhuang. He also says that Zhuang should go through all the documents with Zhuang and see if he can find any friends he can reach out to. He asks the doctor if it's possible for a father with "type ab" blood to have a child with type o blood. He adds that a father who is type ab can't have children with "househouer b" blood, or "ab" blood. When Zhuang asks why his blood type doesn't match his father's, he says that when he was a child, his parents took him away from the city. His mother died during childbirth, so there's no reason for her blood type to match his dad's. He wants to know who the heck is wrong with his family. He opens the door to his house and invites Zhuang in.