Five years ago, Shiori, who was a student, had a relationship with his cousin Masafumi from a little momentum. However, I didn't have sex, I just taught Masafumi, who doesn't even know masturbation, how to do it. Both of us were doing something wrong at that time. Since then, it has become awkward and the bookmark has been far away from him. Then, as the days passed, the two met again ... My cousin's monkey-like libido makes the bookmark's body go crazy!
