A new work in the popular "Hentai Premium" series, which collects carefully selected materials that tickle the hearts of enthusiasts every time! The carefully selected material this time is SM Circle. Please fully enjoy the bondage orgy of men and women with a complete membership system. Once a month, self-proclaimed perverts from all over the country gather in the secret SM circle "Saigo no Yakata". Even those who are usually ordinary members of society expose everything on this day and immerse themselves in pleasure. A girl who calls herself a de M who came for the first time is surprised at the real SM, but she devotes her body and accepts everything. [* There is some disturbance in the image and sound]