"Marital problems are family problems. So it's okay to ask the son for help, right?" The couple, known as lovebirds by those around them, even go on dates together during their days off. However, their nighttime relationship is completely sexless. To the husband, his wife Aoi is like air—too comfortable and just another family member. Unsatisfied as a woman and overwhelmed by her sexual desires, Aoi had already reached her limit. If her husband can't satisfy her, then she'll find someone who looks just like him, young and strong...
