One day, when I came home, I found my wife, Juri, having sex with a strange man. At that time, I... Why did this happen? There were many turning points. If she had prioritized her promise to Akari over her old friend, if she had apologized properly, if she hadn't suddenly refused to make up for it, if she hadn't tried to forcefully have sex with Akari, and if she hadn't had sex with Akari at that time.