Yuka has been married to her husband for 15 years. The passion between them has already cooled, and her husband only uses her roughly as a sexual outlet. While trying to satisfy her unsatisfied Kokoro and body, Yuka happens to meet her former colleague, Ozawa. They empathize with each other's situations, and as if to fill the void in Kokoro, they lay hands on each other and devour each other's bodies. In a room with a broken air conditioner, the only sounds that echo are the sounds of sweat and slurping on each other's juices, and they become immersed in an obscene 69-style sex act...