kamitsurugi ouka, kunijima chiaki, kouyoku senki exs-tia concert, game cg, non-web source, official art, variant set, 1girl, black camisole, blue ribbon, blush, braid, breasts, brown eyes, brown hair, brown skirt, camisole, casual, full body, glasses, hair over shoulder, long hair, long skirt, looking at viewer, neck ribbon, pencil skirt, ribbon, rimless eyewear, sandals, shirt, short sleeves, single braid, skirt, smile, solo, standing, tachi-e, transparent background, watch, white shirt, wristwatch