Kaori tries sexercise, the trendy diet that promises an easy way to lose weight through sex. Supposedly, thirty minutes of kissing burns 200 calories, while thirty minutes of intercourse burns 200 to 300. Her clothes may make her look slim, but she has a small belly and very large breasts—a figure plenty of people love, though Kaori wants to become slimmer and prettier. First she masturbates for a claimed 200 calories, then gives a blowjob for another 200, followed by creampie sex for 200 more. Before long, the video claims she has burned 1,000 calories. Consistency is the key to this diet, and her partner promises to help her keep it up.