1girl alternate_costume apron arm_behind_head armpits arms_up artist_name bare_shoulders black_hair breasts brown_eyes collarbone enmaided eyebrows eyebrows_visible_through_hair grey_background hair_between_eyes kantai_collection long_hair looking_at_viewer maid maid_apron maid_headdress medium_breasts nachi_(kantai_collection) navel side_ponytail simple_background solo waist_apron yanagi_wakana