"i want to stand out as a woman," says 40-year-old aoi sekiguchi, a full-time housewife. she married her colleague 12 years ago and retired early. although she has been living peacefully with her child, she feels anxious about ending her life as a woman now that she has turned 40. she has had three male partners and no affairs. her sex life with her husband is limited to missionary position only. she regrets pretending to be satisfied and suppressing her desires. aoi has never openly admitted to her husband that she is a slut. she realized that the only way to stand out as a woman is to release her true self. a modest and chaste woman takes on her first affair with the resolve to change her life. watch as she begins to release her hidden desires.