Chizuru Akasaka, 40 years old, a mother of one child entering her 11th year of marriage. She appears to be a happy, close-knit family of three, but her husband dotes on his only daughter so much that everything in their life revolves around her. Somewhere along the way, she started being called "Mom." In the midst of days where she can't feel like a woman, she can't even get in the mood for sex, and before she knows it, the couple's intimacy has dropped to zero. "Is this what it's like to be a mother..." Along with a feeling of resignation, the two characters "cheating" came to Chizuru's mind. 10 years after giving birth. Please see the first infidelity of a beautiful wife with a great figure and a slender waist who came to comfort her unfulfilled heart and body.