Married couple exchange and swapping OG, which were popular in the Showa era, are now in a quiet boom as a new cheating trend officially recognized by married couples. The fifth installment in this series is also a swapping guide work that was created so that mature couples and couples can enjoy it with peace of mind and become an entrance that makes it easy for them to easily participate in swap OG off-campus meetings. Exciting erotic videos such as couple exchange and orgy of amateur couples presented in 4 episodes and Ryo ● orgy of two women who participated for the first time are recorded.