"Yuji", who grew up in a facility and does not know the warmth of his family, was unable to get used to the warmth of his wife's home. However, her mother-in-law, Yukie, was the only one who treated her kindly. One day, Yuji witnesses Yukie masturbating. It was only a matter of time before the two, who weren't satisfied with each other, had a lewd relationship. Their relationship continued without their families knowing about it.
