Atsushi, who failed his university entrance exams, is what people call a withdrawal. His impatient father asks his colleague's wife Haruka to tutor. Haruka has experience as a private tutor, but she's at a loss for Atsushi who doesn't care. So Haruka comes up with a strategy to get her to concentrate on her studies... It was lewd guidance using my own hands and mouth. And the extreme classes gradually escalate...
