Tokoha Haruka, 35, is a refined, well-bred married woman with a child. She is a career woman who works at an agency with an office in Marunouchi while raising her child. Behind her dignified appearance lies a complex relationship with her husband, who becomes more attractive as he gets older. This is her first adulterous AV experience. She accepts a penis other than her husband's into her vagina and quietly but surely reaches a climax.