1girl :d arms_behind_back bag black_legwear black_necktie blonde_hair blue_eyes closed_mouth commentary_request day eurika_(falkyrie_no_monshou) falkyrie_no_monshou hair_ornament hat heterochromia high-waist_skirt indoors jacket long_hair looking_at_viewer natsumekinoko necktie official_art open_mouth pantyhose red_eyes skirt smile standing watermark window