Five boys newly enrolled in a formerly all-girls school, already having difficulty connecting with the girl students, run afoul of the school’s "Underground Student Council" and face strict disciplinary measures.

Mari introduces the DTO plan to Hana, and they begin plotting ways to drive the boys out of school. Shingo leads the others boys in shunning Kiyoshi, but Meiko has plans to drive an even deeper wedge between them.

Andre suffers a mental collapse when he goes for a week without receiving any discipline. Shingo takes Anzu to the movies, but finds his expectations betrayed. The Underground Student Council moves forward with their DTO project.