Wife Kazuko (39 years old). Married for nine years, childless couple. Both work as beauticians, with her husband being three years younger. She took on a mentor role during his training, fostering intimacy and a bond of camaraderie. Due to financial reasons, they began cohabiting, fulfilled their dream by opening a shop, got married, and became co-owners. As the business runs smoothly, their marital relationship gradually turns cold and their sexual connection fades. While noticing this change, she begins to recognize her own inner turmoil. Through an overnight two-day trip with a man she met for the first time, she starts to feel new emotions stirring within. The 191st installment of the hit series, a story blending dramatic insight into a married woman's inner world with sensual developments.