1girl, animal_ears, bikini, black_bikini, blue_eyes, breasts, brown_footwear, brown_hair, cleavage, dated, eyewear_on_head, happy_birthday, hawawa_(hawawauma), heart, heart-shaped_eyewear, horse_ears, horse_girl, horse_tail, large_breasts, long_hair, maruzensky_(blasting_off_summer_night)_(umamusume), maruzensky_(umamusume), navel, official_alternate_costume, ponytail, sandals, sarong, solo, stomach, sunglasses, swimsuit, tail, umamusume