1girl, backless_outfit, bare_legs, barefoot, black_one-piece_swimsuit, blue_eyes, blue_hair, bow, dark_blue_hair, from_behind, hair_between_eyes, hair_bow, halterneck, hataraku_maou-sama!, hiiragi_akio, kamazuki_suzuno, long_hair, looking_at_viewer, looking_back, one-piece_swimsuit, red_bow, sand, side_ponytail, signature, sitting, solo, swimsuit, wariza, white_background