My beautiful aunt comes to stay at my apartment...

Mitsuru, her nephew, is constantly excited when her aunt, Kaori, decides to stay at her house. As a former model, the beauty remains undeterred as the years go by. Unable to bear the defenseless appearance of sleeping next to her, she finally attacks her. Seeing Mitsuru regretting her, Kaori tries to make something she didn't have, but she can't immediately forget the strong cock she had experienced for the first time in a while, and comforts herself. However, Mitsuru accidentally witnesses Kaori's masturbation, and seeks Kaori as she desires...