The hero’s family hires a “sugar sister” named Hinano-san to take care of him after school. The two fall for each other and have several sexual meetings.

The story is about a girl that can’t do it socialize with your group because they only talk about sex. On seeing how she feels, her friend tries to help her by letting her have sex with her younger brother, so that she knows what the experience is and can participate in the conversations of her group. [Written by manodoshentais]

This story about a married woman, as is usual in such stories sexually unsatisfied in married life, and decided to make up for lost time with her brother, who came to stay with her husband and children. What started as a harmless joke on a drunken bench, will grow into a constant frenzied sex always and everywhere, at any convenient opportunity.