The art teacher attempts to awaken a disinterested female student to the deeper essence of beauty through physical means, but ends up being drawn into a world of BDSM. This pulls other teachers from the staff room into an unusual extracurricular session. Meanwhile, the female teachers capture a male student who stole their underwear and, like a recurring lunar cycle, take turns punishing him. Repeatedly engaging in face sitting, they ultimately transform into figures resembling Sailor Moon.