Manami Ishino is 45 years old. Although she is not having sex with her husband, she is a pervert who has a boyfriend who is 20 years younger than her. She has sex with her boyfriend twice a week, and she makes him cum inside her every time... This time, at her request to "try something different," she challenges herself with unconventional positions that are difficult to explain in words, such as penetration from a legs-over-head position.