2girls, animal_ears, blush, bow, breasts, eye_contact, frilled_skirt, frills, greyscale, hair_between_eyes, horse_ears, horse_girl, horse_tail, king_halo_(umamusume), koruri, long_hair, looking_at_another, medium_breasts, monochrome, multiple_girls, one_side_up, open_mouth, parted_bangs, pleated_skirt, puffy_short_sleeves, puffy_sleeves, school_uniform, seiun_sky_(umamusume), short_sleeves, simple_background, skirt, sweat, tail, tracen_school_uniform, twitter_username, umamusume, white_background