1girl, black_horns, blunt_bangs, breasts, commission, glasses, hair_bun, horns, looking_at_viewer, naked_towel, night, onsen, original, outdoors, parted_lips, partially_submerged, purple_eyes, signalviolet, single_hair_bun, sitting, skeb_commission, small_breasts, solo, steam, towel, water, white_hair