In this release starring Yoshimoto Wakako, a 50-year-old wife decides to discover a new side of herself after 16 years of marriage. Though satisfied with her husband, she longs to express a different, hidden part of her desires—leading her to undergo intense stimulation that awakens her submissive nature. Shyly yet excitedly spreading her legs in the M position, she gradually becomes more aroused. She even declares, "I want a cock," vowing to treasure her first sex toy "more than my husband" before taking it home. Her erotic scenes, including being drenched in lotion in the bath, build up to intense, uninhibited sex that ultimately transforms her into a full-blown "perverted wife"—revealing a thrilling new side of her sexuality.