Our hero, who was invisible, devoted himself entirely to sex and unusual relationships. But one day he lost the invisibility potion, and one of the service girls found it. Now she has the opportunity to experience all the delights of communicating with the "invisible man."

This anime, which takes place quite a long time ago, tells the story of a woman and her daughter. Not only are they genetically similar, but they are also attracted to the same man. They both want to be close to him, but he doesn't reciprocate their feelings.

Yoko-san is happily married to Masahiko, and she enjoys her daily life with her husband and son Kazushi. However, she has been worried lately that there has been less intimacy in their family.

The head of the educational institution started an affair with one of the teachers. Together with his nephews, he had fun with twelve teachers right inside the walls of the institute.