Husbands who want to cuckold and wives who accept their desires. - Those seeking new stimulation are drowning in extraordinary excitement... - Mr. and Mrs. Nakazato, who frequently go to swapping parties, approach Mr. and Mrs. Aragaki, who have been friends for some time, and suggest that they attend the party in order to build a good marital relationship. - Starting with husband-wife exchange sex over a video call, they develop a physical relationship that transcends the boundaries of husband and wife. - Their hearts are excited by new pleasures, and they seek even more pleasure, abandoning their shame and fulfilling their desires. - The banquet of sake pond meat forest that takes place in an alien space far removed from everyday life drives two couples crazy.