1girl, ahoge, animal_ears, ass, black_hair, breasts, chair, corrupted_twitter_file, desk, hair_between_eyes, hair_ornament, horse_ears, horse_tail, kitasan_black_(umamusume), kumiyabe, looking_at_viewer, looking_back, medium_breasts, medium_hair, miniskirt, on_chair, red_eyes, school_desk, school_uniform, simple_background, sitting, skirt, solo, sweat, tail, thighhighs, tracen_school_uniform, umamusume, white_background, zettai_ryouiki