Fifteen-year-old Amaya Kanaka is ready to start high school, showing off a secret technique and giving some elementary school kid a snack.

Iwasawa Saki, Kanaka's childhood friend, has started her high school life and must deal with a locker issue.

Yanase Mei winds up in a class with a very odd teacher, surrounded by odd classmates and forced to be class representative.

Matsuno Shusaku, a 28-year-old teacher, is mistaken for a student -- because she is wearing a students' uniform.

When school gets out early because it's testing week, everyone heads to Kanaka's house to "study."