One day during his university days, a man gets drunk at a drinking party and wakes up in the room of his senior, Kui. There, the man learns of Kui's secret hobby, ``nipple masturbation,'' and develops a relationship with Kui that he cannot tell anyone. As time passes, a man gets a job at the same workplace as Kui. The two continued to have a secret relationship. The nipples, which have been developed to be even more sensitive than when they were students, have become even more pleasure organs than the clitoris! Furthermore, Kui cultivates male nipples as well as her own nipples. A man who goes crazy with a completely different kind of pleasure than a dick. And a woman gets wet looking at such a figure. This is the culmination of the horrifying nipple-nurturing records of a woman who pursued her nipples in a perverted way.
