Even though they are about to become husband and wife, Yui Hatano and her boyfriend still quarrel frequently, which makes her really sad. Then one fateful day, Yui was trapped in the elevator with the worker next door, and the two could not contact outside for help. The air inside was getting hotter and hotter, and the sweat made them extremely worried. It was in that difficult moment that the neighbor became interested in Yui, which touched her, and so the lonely cock came to the penis butterfly, deprived of sex for a long time. The two frightened humans have helped each other achieve pleasurable pleasures, and even after escaping from the elevator, they often come to each other for sex as a habit.