keta, 1girl, solo, breasts, looking_at_viewer, blush, short_hair, open_mouth, hair_ornament, twintails, nipples, green_eyes, ass, nude, small_breasts, green_hair, looking_back, water, flat_chest, wet, back, hair_bobbles, steam, partially_submerged, onsen, bucket, bathing, bath, in_container, in_bucket, wooden_bucket