<Married woman Ai spends three dreamy days indulging in sex with her affair partner like in an adult video, unaware that her husband is hiding in the house...> When her husband returns home after canceling his business trip, he hides to surprise his wife. His wife returns home with a scary-looking stranger. The infidelity suddenly begins. The affair scene is sometimes visible from under the bed. He doesn't want to see the super erotic scene unfolding in front of him, but he does and gets a depressed erection... A unique experience of peeking in real time from every gap.