Women enter the sex industry for many reasons, from debt to helping with household expenses. Today, an ordinary married woman makes her debut at a soapland somewhere in Kanto. Before meeting her first client, she must learn the basics of soapy body service, the proper attitude toward customers, and the techniques needed to become a successful soapland worker. Confused by the unfamiliar mat and erotic chair, she strips as instructed and undergoes hands-on sexual training.