Five years have passed since Yonhap graduated from his first day of school. He and his classmates are still at the school, and Yonhap's mother has written to say that her son is still going to the school. Yonhap asks his father if he is his biological father, and he says that he is. He explains that his family consists of his father, mother, and "dusty" sister. He says that they have to explain things to outsiders, but that as long as they are together, they will be able to do so happily.