A local city near Tokyo. - The honor student Sakura who attends a certain school in that area is a serious student with a strong sense of justice. - The family is wealthy and can study, and after graduation, he plans to go on to a famous university. - On the other hand, classmates Suzuki and Kawagoe were originally honor students, but they stumbled upon their studies and are now becoming inferior students with poor behavior. - One day, Sakura pays attention to Suzuki and Kawagoes behavior at the landing in the school and looks down on them. - Suzuki and Kawagoe tremble with anger and hatred for that attitude. - And during the summer vacation ... the two bad guys called Sakura to a classroom without her students and did their best for 20 days.