In the week before the exam, everyone looked at the key points of the teacher's drawing with books in their hands, and even in the dormitory, some students who often didn't attend classes bought answers all over the campus, and some students kept running to the office building. At this time, Chu Xuan and Qin Zheng had already bought the train tickets to go home. At the request of Chu Xuan, Qin Zheng and Wang Yuhan had also booked tickets to go back three days late.

the exam is finally over. On that night, Chu Xuan calls Xiao Meng to the school's water bar, and he's ready to advertise like...