In this short scene, huamei introduces herself as a possible mother. She tells the professor that her son, sanchuan, is smart and polite, and that he treats people with filial piety. She asks him to take away her son's allowance for the month, and he gives her a shopping coupon for chocolate. He tells her that his son, yiyu, has dropped his wallet in front of his house, and ergu has asked him to give her the money so that he can give it to her son later. . The professor tells her to bring her best friends to the house after class, and she tells him to stay calm.