Yuna has been married to her husband who works at the same company for 10 years. Her husband had an affair with a subordinate of the company, and the marital relationship was cold. One day in front of Yuna, who can only comfort her woman's body alone, her former colleague Oshima appears. The two of them, who were like friends, blossomed into old stories, empathizing with each other's circumstances and overlapping their lips and skin as if to compensate for their loneliness. - And in a room with a broken air conditioner, only the sound of sweat and lewd juice echoes, drowning in obscene sixty-nine copulation ...