Don't compare your life with someone else's

Girls are coming to Kurogin high and class 3-D are so excited but ended up scaring them. On the other hand, Tyuchi, another student met one of the girls in a books store shoplifting. Tyuchi didn't turn her in and brought her to an arcade instead. He then knew that the girl is the teachers pet who is considered "PERFECT STUDENT" of her previous teacher whom he didn't get along with. While in the arcade, the teacher caught them and got themselves in a serious trouble.