The forbidden "M-Lady Catalog for Female Slaves," which records the figures of ladies harboring desires they don't want known, is finally being revealed in its entirety! A secret club where only S-type members gather. There, ladies who visit of their own accord, desiring M-acts, are found. The one recorded this time is Rika-san, a 26-year-old married for three years. At first glance, she is a happy, beautiful young wife dedicated to raising children as a full-time housewife, but deep in her heart, she harbors hidden desires to be "trampled by a man" and "bullied thoroughly." Exposing desires that can never be satisfied in daily life, her figure and sexual preferences are recorded in secret. The footage becomes the subject of appraisal by the ultra-S members and is bought by the member who offers the highest price—.