Reiko plays a good wife and has a happy married couple, but behind the scenes she enjoys having an affair with a handsome guy on weekday afternoons. However, the secret communication with her husband with a time limit until she gets home actually caused Reiko, who has an overly sexually craving, to be frustrated. "I want to have sex with a young man to my heart's content without worrying about time!" One day, a chance comes to fulfill Reiko's wish. Her husband is going on a three-day business trip. Reiko immediately calls out a man. 72 hours of devouring carnal desires to the fullest, begin with a nest of love...