A new label that exposes the promiscuous sexuality of housewives rampant on the streets, the Married Woman and Mature Woman Laboratory "Mature Woman LABO". A mother and her son are brought to a room filled with a large number of erotic goods under the pretext of a monitor test. There is only one thing to do: "Stay in the room for an hour". What will happen to the two of them locked in a closed room with an erotic atmosphere?! ...Oh, I forgot to mention one thing. In fact, I have only told the mother about a "certain success fee". ...Oh, but the mother does not know yet that there is a hidden camera in the room...