Shuukatsu Katei Kyoushi

The story is about a college student named Sata Akiko who becomes a tutor for a boy recommended by her professor. If she does well, her professor will help her find a job. However, the boy tries to stop her from teaching by being mean and eventually sexually harassing her. He even threatens to tell his mother if she refuses. Akiko feels like she can't fail the job and becomes submissive to the boy's whims, leading her into a world of shame and pleasure.