A reprint of a forbidden work about age differences and incest. Grandma Koto used to be a geisha when she was young, and even now that she's older, she still exudes some kind of sexiness. Her hobbies are daily walks and trips to hot springs, and her favorite celebrity is kickboxer Ma○to! Grandma Koto, who has such a fresh sensibility, tries sex for the first time in 20 years. Grandma Koto was just as nervous as she was when she graduated from junior high school for her first experience, but she was excited by the erect penis of a man she hadn't touched in a long time and the vibrator she had never seen in her life! By the end, she was writhing and moaning.