1girl, alternate_costume, armpits, bad_pixiv_id, bed, blue_hair, blurry, blurry_background, blush, breasts, celmotor, cleavage, collarbone, dress, garter_belt, horse_girl, large_breasts, long_hair, looking_at_viewer, mejiro_ardan_(umamusume), pajamas, purple_eyes, see-through, see-through_dress, smile, solo, thighhighs, umamusume, underwear