She transforms into a woman but isn't happy about it! Suddenly aged over 20 years and trapped in her mother's body, her confusion is vividly portrayed, along with involuntary words and gestures that emerge unexpectedly. Yumi Kazama delivers a powerful performance in this body-swap drama. She's bewildered when seeing other women's breasts and genitals at a women's club, yet becomes aroused by her former self's semen-stained underwear. As she gradually grows more feminine, her female sexuality explodes in a sexual encounter with her father—this climax is the highlight of the story.