"My husband's libido started to drop drastically after he turned 45," says Takayo Morino, 50, a full-time housewife. She has been married for 25 years to her husband, an office worker, and lives with their two sons. "I'm playing with myself down there almost every day, using different methods and things... Ah, it's so embarrassing." As if wishing for something she didn't have, Takayo's libido has been increasing in contrast to her husband's declining libido. Although she has managed to relieve the stress of her rising sexual frustration through masturbation, with her limited environment and knowledge, it has become a rut. She mustered up the courage to appear in an adult video. "Since I got married, I've been devoted to my husband, so I don't know the left from the right of eroticism, but I hope you will support me." With her elegant demeanor, Takayo seems like a faithful wife, but how will her first infidelity taste?