One day, a teacher finds a mysterious notebook that can force someone to compel under the pretext of “guidance”. However, to do this, the owner has to write his wish in the notebook and show the writing to the person he wants to command. But there is one precondition: the notebook can only be used for sexual acts. In order to test out the book, the teacher tells a lie to his students, Megumi Fujimiya and Yayoi Tachibana. The compulsory subject “sex guidance” has been introduced, and a teacher must take care of them to prepare them for the future – after all, the two are supposed to make good partners one day! The two girls, under the influence of the notebook, take their teacher’s word for it. And so he begins to explain to them how to use condoms, what a “creampie” is, and how they can satisfy their future husband in a different way…