That JAV

Airi and Yukio, a college couple, move into a new house to live together in anticipation of marriage. The boyfriend, who does not mind the thin walls of the house, engages in intense sex with Airi, but of course the noise can be heard all the way to the next door, and the neighbors take notice. One day, while Airi is alone, the neighbor comes over to her house and says, "I want you to do me one favor.