kamitsurugi ouka, aikawa haruno, kouyoku senki exs-tia concert, game cg, non-web source, official art, variant set, 1girl, antenna hair, arm at side, black hair, blush, bow, casual, collarbone, full body, green eyes, hair between eyes, hand on own chest, high-waist skirt, long hair, long skirt, long sleeves, looking at viewer, open mouth, pink skirt, sandals, shirt, skirt, solo, standing, tachi-e, toes, transparent background, white bow, white shirt