For two weeks while her husband was away on a business trip, Kazumi was taken care of at her daughter's and her husband's home. - They were living happily for a while, but one day, they realized that their daughter and her husband were being careful about themselves and refraining from their nightly activities. - Kazumi, worried about making her son-in-law frustrated, suggests, ``I'll take care of it,'' when the two of them are alone. - I just wanted to atone for my sins. - At this time, Kazumi never dreamed that her actions would cause her step-son to have forbidden feelings.