1girl, animal_ears, bad_twitter_id, bare_shoulders, breasts, bucket, cleavage, collarbone, curren_chan_(umamusume), dosscsfkqiqe1kg, grey_hair, horse_ears, medium_breasts, naked_towel, onsen, open_mouth, partially_submerged, pink_eyes, shampoo_bottle, short_hair, solo, towel, umamusume, water, wet