The professor is shocked to learn that Zhan has not shown up for the robot contest. He tells the old man that it is just a child's game and that he will discuss it with him later. The professor says that he just saw Zhan standing over there looking for the professor. He says that it has been a while since Zhan came to the laboratory, and he thinks it is time to come back home. He promises to bring her back. He asks her if she is scared, and she says that she is. She asks if he is mad, and the professor says he is, and that she should be allowed to go back to her own house alone. She says that if he wants to go alone, then please forgive him. She tells him that he should not have done that,