Sayuri is 40 years old. She is a full-time housewife who has been married for 16 years. Since she was young, she has been able to orgasm through clitoral stimulation, but not through vaginal stimulation. What does it feel like to orgasm through vaginal stimulation? This question is still on her mind, even now that she is a mother of two children. Now that she has made up her mind to appear in the film, she will answer this long-held question!