A refined, well-bred 35-year-old mother, Haruka Tsunowa. Balancing motherhood and a career, she works at an office in Marunouchi as a career-mama. Behind her dignified appearance lies a complex longing for her husband, who becomes more attractive with age. Her first extramarital AV experience. Quietly, yet undeniably, she reaches climax as she welcomes a penis other than her husband's inside her.