1girl, animal_ears, bare_arms, bare_shoulders, blue_hair, braid, breasts, cleavage, crown_braid, horse_ears, large_breasts, long_hair, looking_at_viewer, mejiro_ardan_(umamusume), naked_towel, onsen, outdoors, sitting, smile, solo, steam, thighs, towel, umamusume, uu-tan_(hushigi10), very_long_hair