"I regret not playing around more." Shiori Kimiyoshi, 36, is a mother of one in her eighth year of marriage. She has only had three sexual partners in her life. Although she first discovered the pleasure of being a woman through her relationship with her husband, she quickly moved through marriage, pregnancy, and childbirth. Now, her life revolves entirely around housework and childcare, and she has realized that the distance between her and her husband has grown to a point where they no longer feel like a man and a woman. Fearing that she might forget the pleasure of womanhood altogether, a desire for an affair began to sprout within her. Please witness the challenge of this beautiful, slender housewife as she falls into the muddy depths of infidelity.