In her previous work, married woman Rikao Emi, age 36, experienced her first creampie sex with a man who was neither her husband nor boyfriend. This time around, she has long desired a relaxing onsen trip. Usually, during family vacations, Emi can't fully enjoy herself due to taking care of children. On this adulterous getaway, she showcases bold sexual acts that she wouldn't want her family to see while indulging in passionate intercourse. Considering this the final chapter, she savors every moment of her secret escapade.