After her child-rearing duties had settled down a bit, Ms. Kuroki visited an esthetic salon as a treat for herself. With her fair skin and youthful appearance, she seemed slightly nervous during her first-ever esthetic experience, yet her willingness to cooperate was evident. As her therapist Kurea Hasumi carefully stimulated the anal area, she was surprised by Kuroki's high sensitivity. Gradually relaxing, Kuroki eventually became so submissive that she actively desired anal penetration. Her innocent, doll-like demeanor was irresistible—perhaps too much so, as she ended up being brought to orgasm over and over again.