One day, Aoi and her husband, Daichi, are suddenly kidnapped by a mysterious man. Also present are Sakawa, a man from the construction company they have dealings with, Machida, their neighbor, and Kaito, a student Aoi is tutoring. The five of them are visibly shaken... At that moment, a timer appears on an electronic display board, accompanied by a voice saying, "I'm going to have you all have sex now," and it starts counting down. After much internal struggle, Aoi and Daichi end up having sex in front of the three men. They were supposed to be able to leave the room, but Sakawa interferes, leaving Aoi trapped alone in a cage...
