1girl, ass, bangs, black_legwear, book, book_stack, bookshelf, brown_hair, chair, clothed_masturbation, fingering, fingering_through_clothes, fingering_through_panties, grey_skirt, library, long_hair, masturbation, masturbation_through_clothing, one_eye_closed, panties, panties_under_pantyhose, pantyhose, pleated_skirt, school_uniform, serafuku, single_stripe, skirt, solo, through_clothes, underwear, uranohoshi_school_uniform, yellow_eyes