At the end of the first day of the university's summer school, the students are introduced to the professor, who introduces himself as "cheng mu" , or "gentleman." The students are taken aback by the professor's harsh treatment of them, but the professor assures them that he is a "very gentle and reliable" teacher. The professor asks the students if they like the cigarette they are smoking, and the students respond that they do. The teacher asks if the student is happy because he or she is in love with the professor. The student says that she is, and she is surprised to hear that the teacher is laughing at her because she is happy just because she and the professor are in love