Ten years into her marriage, Ryouko lives with her husband, father-in-law, and brother-in-law, dutifully caring for her family. One day, excited about an upcoming overseas trip she had planned with her husband, she tries on an old swimsuit she bought years ago. To her horror, her overgrown pubic hair spills out unexpectedly, making her tremble with embarrassment. Seeing this, her father-in-law impulsively shaves her pubic area completely. From that moment on, Ryouko's mature, smooth, hairless pussy becomes irresistible, drawing the attention of the men around her, and one after another they seduce her, plunging her into a series of forbidden affairs.