The Hatano couple, who moved in downstairs, came to greet the Otogi couple living upstairs. The moment they saw the two of them, desire awoke within the Otogi couple. After confirming that Yui was not home, Hibiki barged into Yui's house and successfully seduced her husband. Hibiki enjoyed having sex with both her own husband and Yui's husband. One day, she invited the Hatano couple over for dinner at the Otogi residence and revealed her relationship with Yui's husband herself. Upon learning this, Yui finally had a relationship with Mr. Otogi. What will become of their marital relationships...
