The narrator and his friend zhengshu are in a shopping mall. The narrator is worried that he has been separated from his friends and that he will not be able to communicate with them. He asks his friend if he would like to go with them on their shopping expedition. . He tells his friend that he used to like to take pictures with his grandfather's old film camera. He says that he is interested in learning more about the subject of the assignment, which is to take family photographs with a fake film camera . The two of them look at the fake camera and decide that it is a great opportunity to explore the world around them. They decide to go to their mother's house to find her.