That JAV

Rentaro is a grandma's boy who was raised by his grandma Eri since he was little, as his mother died when he was a child and his father moved around Japan for work. He went to college in Tokyo and started living alone, and today he returns to his grandma's house for the first time in a long while. 3 years ago, Eri was living alone after her grandfather passed away, and she was frustrated beyond her years. They meet again for the first time in a long time. Eri, frustrated with her grandson Rentaro's body...