40-year-old Chitose Momoyama. She used to be in a sports club back in her youth, and was much slimmer then—she now feels slightly insecure about her current figure. Currently working part-time at a bookstore, she lives her days as a mother of two children. Her marriage has reached its 14th year, and she's been experiencing a sexless relationship with her husband. While her sex life isn't entirely unsatisfying, she's gradually begun craving some change. About three years ago, while chatting with coworkers at her part-time job about dieting, she sighed, "It