M is a high-end members-only casino that is said to be located somewhere in Tokyo. It is a popular store where beautiful, big-breasted bunny girls in super high-cut swimsuits serve customers! They also offer secret erotic services that are only available to regular customers! They satisfy the various sexual inclinations of their loyal customers, such as big-breast fetish, leg fetish, and costume fetish, and fulfill their desires with the ultimate erotic techniques!