1girl, ahoge, animal_ears, black_hair, black_headwear, black_thighhighs, blush, breasts, cosplay, gloves, grey_background, hat, horse_ears, horse_girl, kitasan_black_(umamusume), kshimu, large_breasts, looking_at_viewer, lying, multicolored_hair, on_back, red_eyes, short_hair, simple_background, skirt, solo, streaked_hair, sweep_tosho_(umamusume), sweep_tosho_(umamusume)_(cosplay), thighhighs, thighs, umamusume, white_gloves, white_hair, white_skirt, witch_hat, zettai_ryouiki