RUBY conducts an impromptu interview with people she met online who have peculiar interests! This time, it's about secret hot spring inns! An ultimate fetish where partners are exchanged among each other. A forbidden banquet woven by four extremely perverted couples, totaling 16 people, who seek high-level pleasure, captured by a stationary camera. Completely records the entire process of a live swap! Offering your beloved partner to someone else, and indulging in debauchery in front of your beloved partner... Delivering the raw swap experience as it is.
