Rina Masako, a young wife who got pregnant after her father-in-law taught her how to seduce her husband
Rina's husband has been cold lately. She doesn't know why, so she consults her father-in-law. However, when her father-in-law consults her, he pretends to embrace Rina. After that, he repeatedly performs erotic acts on her, claiming to teach her how to seduce her husband. In addition, "Rina" also felt comfortable and was carried away...
