Yuzu, a wife who lived a happy married life, felt that her night life with her husband was somewhat unsatisfactory. - One day, she is attacked by her father-in-law who has dementia who is lustful. However, Yuzu's body reacts sensitively despite her involuntary act and blows the tide! Yuzu was stimulated by the forcible blame from her father-in-law, the M desire hidden inside. - After that, Yuzu began to want to act with her father-in-law, and the affair between the two escalated into dense and vulgar squirting sex.