Hobbies include bowling (average score of 250!) and the special skill of drawing erotic manga. Tsugumi has been using her self-drawn erotic manga as a stimulant for masturbation since her student days. To avoid getting caught by her parents, she learned techniques to finish quickly, such as angle masturbation and foot masturbation. It's shocking to see such an adorable little sister character indulging in pleasure so intensely!
