While his wife is away on a solo trip, he has a forbidden secret rendezvous with his sister-in-law, Yuka. Even though their relationship has cooled, he can't resist her sweet, affectionate seduction... "You're cheating on me too, aren't you?" She has a goddess-like, soothing smile, but she also whispers devilishly to tempt him! Her slim waist and curvaceous figure reveal an unbelievable amount of meat! Her attractive body, unlike his wife's, has made him forget about her. Even though it's a bad thing to do, he's always been more attracted to her than his wife, day and night, night and the next morning...