Chika Mikami, 39, decided to star in an adult video just before turning 40. A full-time housewife and mother of two, Chinatsu says her sexual desire has increased since she turned 30. However, she is unable to confess this to her husband, who prefers pure and innocent Chinatsu. Despite wanting to be rejected, she is unable to suppress her rising desire and masturbates every day, but the hole in her sexual desire that cannot be filled only grows bigger. By chance, she was in Tokyo to visit a friend when she was approached and after some hesitation, she decided to star in the video.