Tsubasa, a married woman, gets drunk and ends up in the wrong house, Tsubasa her neighbor to do it with her. The next day, she is seen masturbating while swearing at her neighbor, Mizutani, again. When Tsubasa comes to explain himself, Mizutani is sincere and puts her at ease. Just after a Tsubasa of silence in which they are conscious of each other, a sudden visitor appears, and as she hides under the covers, she sees Mizutani's erect penis... The two, who were never meant to have sex, end up in an affair that becomes so intense that they end up sweating after Tsubasa witnesses her masturbating...