Recently, sexy lingerie has become a secret trend among married couples. But in fact, there is one woman behind this trend: the legendary door-to-door saleswoman, Yuu. She displays her own body while wearing the products to show off their charms, and uses the ultimate sales demonstration style to let customers experience for themselves how sex while wearing lingerie can enrich their married life at night. For customers who are hesitant to buy, she even offers a special creampie service. Tonight, you will be a witness to the legend...