42-year-old Sayaka Horiuchi appears in her debut, having grown disillusioned with her husband due to his constant cheating, which led her to try infidelity herself—ultimately becoming addicted to sex and deciding to appear in an adult video. Wearing sexy lingerie her husband secretly kept to dress his own mistress, she gets soaked in cum and becomes so aroused that during her first public masturbation scene, drool and pussy juice stream freely. Finally, she receives a thick creampie from a stranger, smiling with satisfaction as the true nymphomaniac housewife is revealed.