In this short scene, we are introduced to a new character named "little tang pear" . He is a student at the university who has just received a message from his roommate, "lizi" , informing him that he is to take a practical exam the following day. He has not returned to the dormitory the previous night and has not responded to his texts. He also has not taken the practical exam, which will affect his final year's credit. He tells his roommate that the exam is more important than any other exam he has taken in his life.