New Married Women Exhibition Circle - Mizuki Yayoi/Aya Mamiya

Ryo, a site supervisor at a small construction company in Tokyo. He married Mizuki, a younger woman he worked with, a year ago. They're not rich, but they live happily without any wants. However, Mizuki doesn't really like sex, and perhaps because of the lack of a night life, Ryo is invited by a man named Nakata he met on a certain site to join a gathering called a 'Wife Offering Circle.' It turned out to be a perverted circle where members offer up their own wives. Then one day, Ryo is pressured by Nakata: 'You fucked my wife, so offer up yours!'...