When Lin learns that his mother is in a good mood, he asks his father to have dinner at their house before he leaves. He tells Lin that he has made a lot of food for the two of them, and he hopes that they will enjoy it. Lin tells his father that he does not know why his mother was so indifferent to humans before, and his father says that he thinks her indifferent attitude is due to the fact that she has experienced bad things before with humans