The school season is here, and this high school is filled with a vibrant and youthful atmosphere. There is a huge crowd of freshmen at the door just waiting for the announcement of the class placement. There are 23 classes in total, among which classes 1, 13, and 23 are the concentration of students who do not have enough high school admission scores but are willing to spend money to enroll. Momo comes from an average family, but carries the expectations of her parents to enter this college. She is assigned to class 13. From here, she starts her high school life and appreciates the ignorance of youth...