1girl, alternate_costume, animal_ears, bed, blush, braid, breasts, collarbone, convenient_censoring, hair_ornament, happy_birthday, heart, heart-shaped_pupils, horse_ears, horse_girl, horse_tail, kingbole, lingerie, long_hair, looking_at_viewer, medium_breasts, mejiro_bright_(umamusume), monochrome, no_bra, no_panties, open_mouth, see-through, side_braid, solo, symbol-shaped_pupils, tail, twin_braids, umamusume, underwear