In this short scene, the main character is introduced. He is introduced as "feng qiao" , which means "crazy customer" . He arrives at the university to check out his brother's new car. He learns that his brother has requested to cancel the purchase contract with the company because he had been sexually harassed by the company's senior management. He tells the company that he will help them win the contract and clean up his new home. He also tells them that he would like to attend a university class on "quantum physics" and that the professor is also attending the class. The professor is finally there, and the group rushes off to find him. He explains that the concept of "energy" is not continuous but exists in a separate cell. The concept of energy is called "energy quantum," which means the smallest unit cannot be further separated. The group apologizes to the professor for the misunderstanding they had at the previous festival.