The next day, the students prepare for their lessons, and the teacher tells the students to prepare for tomorrow's lesson. He tells them that the next day will be their last lesson together. The teacher asks the students if they are done with their lessons. The students agree that they are, and they prepare for the next lesson. They tell the teacher that the classmate who gave them a voucher to go to a hot-pot restaurant gave them the voucher to celebrate their performance in front of the school. The student says that he would like to invite the teacher to a party, but he does not want to hurt the classmate's feelings for him. He explains that he will stay in school and become a professor, so he will not be able to be near the students. He asks the teacher if he understands that he can invite students and friends, but the teacher says he doesn't have friends. He says he can't tell the student that he is going too far, but that it is better for him to end this one and for all