Yumi has been married to a man with a stepchild for 3 months. She is on good terms with her husband, but her relationship with her son, Kazuki, was not going well. So, at the suggestion of her husband, she goes on a hot spring trip, and the distance between the two grows closer. However, Kazuki, who felt a woman for Yumi, could not suppress the lust that boils up and attacked her sleep. Yumi is squid many times by his violent and single-minded piston and faints in agony. - In the copulation that can never be tasted by her husband, her body can not resist his ...