42-year-old Kotomi Nanakusa. Married for 12 years, mother of two, she balances housework, parenting, and working part-time four days a week. While her relationship with her husband is good, after giving birth to their second child, they agreed to stop trying for more kids, and their intimate life drastically declined—eventually turning into a sexless marriage. Strongly desiring sex and longing to enjoy intimacy every day, Kotomi found her passionless life increasingly unbearable. Gradually, she began fantasizing about infidelity, and driven solely by the desire to experience pleasure again, she embarks on her first affair. Watch as this F-cup, milky-skinned married woman steps onto a new path.