52-year-old Yukimi Shiina has noticed her stamina declining with age, so she decided to join a gym to get in shape. A housewife married to a man working at a major food company, with a daughter attending university in Tokyo, Yukimi found her health improving and her libido rising—so much that she could no longer be satisfied by her husband and began cheating. As her body grew firmer, she developed a strong attraction to muscular men. After one of her lovers told her "professional actors are incredible," she couldn't resist and ended up auditioning. Today, she's come up to Tokyo to check on her daughter, and she especially enjoys relationships where mutual desire is evident, with face-to-face sitting positions being her favorite. At the peak of her potential as a mature woman, don't miss her full-throttle sex performance!