RUBY is going to interview some of the people he met on the Internet who like things! This time, it’s the hidden hot springs version! The ultimate fetishism: exchanging each other’s partners. Four couples, 16 people, each seeking a high level of pleasure, are filmed from a fixed point camera in a forbidden banquet. The entirety of the raw swapping is captured in full! They offer up their beloved partners to strangers, and then they make love in front of their beloved partners…we present you the swapping as it really is.