Ishigami, who works for a major advertising agency, is dating Ruisa, who works as a receptionist at the same company. - However, "Ishigami" who is scared of "Ruisa" is engaged to "Ruisa" who will never let her do it raw every day. - One day, the boss of the company and a senior invite "Ruisa" to preview a comfort trip. A metamorphosis NTR propensity that awakens on the stage of a hot spring inn and a rich ring repeated in a cloudy bathtub stained with semen crossover. #養老P