In some areas of Hiroshima Prefecture, there are still underground sex establishments known as "Mantles." Once you leave the downtown area, you'll find a suspicious looking tout waving at you. As you'd expect from an underground sex establishment, there's a wide range of girls, from professionals to the most exquisite Amateur, and the services offered vary greatly from person to person... Among them, the young Amateur girls are not very Kokoro and are completely unaware of the hidden hidden cameras... Carefully selected A-class Amateur girls and male customers who want whatever they want get entangled in a passionate encounter!