Yuka married her current husband two years ago. Recently, my husband has a lot of business trips and is often not at home. As a result, she spent more time with her husband's stepchild, Atsushi, and became friends with her son-in-law. One day, Yuka finds a video camera in Atsushi's room that he bought with his part-time job. When I look at the video that was taken carelessly, Yuka's figure is reflected there...