While Nozomi's husband, Kenta, is on a business trip, Takada, who has moved in next door, comes to greet her. He helps Nozomi, who is returning from shopping, and suggests drinking wine together. Nozomi refuses, but is forcefully invited and left alone at home. Takada takes advantage of Nozomi's loneliness, caresses her during a phone call from her husband, and has sex with her. Nozomi, who is in the shower, regrets her betrayal, but is again seduced by Takada's skillful words. The next day, Takada revisits and goes to the bedroom from a passionate kiss. Unable to ignore the incoming call from her husband, Nozomi answers the phone during the act at Takada's instruction. She talks while suppressing her moans, but is overwhelmed by the sense of transgression and pleasure.