1girl, alternate_costume, animal_ears, big_belly, blue_hair, blush, braid, breasts, crown_braid, horse_ears, horse_girl, horse_tail, itsukawa_kamieshi, jacket, long_hair, medium_breasts, mejiro_ardan_(umamusume), navel, nonexistent_memories_(jujutsu_kaisen), pregnant, purple_eyes, simple_background, smile, solo, stomach, tail, umamusume