Ever wondered what goes on behind the closed doors of the teachers' lounge? At Asashio High, the new school year brings new faces, both in the student body and on staff. The new crop of teachers are all former students, and it quickly becomes obvious they have yet to grow out of their hilariously juvenile ways. From romantic entanglements to otaku obsessions, these teachers just go to show that the fun doesn't have to end after high school!