An adulterous sex movie of a girl Yuu Shinoda when once by chance she went out and got stuck in an elevator with a neighbor guy in the same apartment block as her, waited forever to see no one to open the door and had a bowel movement. but didn’t know what to do the guy stuck together told him to pee, and hearing each other’s pee they were struck by lightning making love to each other as if it were the last time they lived, when the fuck was over, someone rescued the door and opened the door and Since then, they have secretly had an affair with each other no matter what happens in life….