It all started when a drunken Hitomi suddenly kissed her husband's older brother who lives with her. As a result, she continues to have an affair at home, hiding from her husband. However, Hitomi consults with her brother-in-law, "It's about time to end this relationship because her husband is likely to find out." However, her brother-in-law had taken a video of her relationship with her eyes, and refused to dissolve her relationship with it as a shield.
