This is a work that allows you to watch the whole picture of the wife swapping and swapping parties that amateur middle-aged and Amateur couples secretly hold in local resort apartments, annex of hot spring inns, and members-only clubs. This is the definitive edition that shows 16 married mature women in their 30s to 50s, their spouses, and single participants, who were filmed by infiltrating seven swapping parties across the country, showing off their erotic orgies while maintaining their privacy.