A lovey-dovey couple who came to look for a love nest is offered "This is your chance to get a down payment?" and they challenge themselves to a super embarrassing SOD-style game at a housing exhibition center! Once you roll the dice, it's over! Even with your loved one right in front of you, you have no choice but to do it. From the kitchen in a nude apron to the bath together, there are plenty of grids unique to a model room!