satou kuuki, game cg, large variant set, non-web source, official art, variant set, 1girl, :d, black skirt, black thighhighs, blush, bow, bowtie, collarbone, cowboy shot, fang, fujii natsumi (ysphere), hair between eyes, hair ribbon, long hair, long sleeves, looking at viewer, miniskirt, open mouth, pleated skirt, red bow, red bowtie, red eyes, red hair, ribbon, sailor collar, school uniform, shirt, simple background, skirt, smile, solo, soukou seiki ysphere, standing, thighhighs, transparent background, twintails, white background, white sailor collar, white shirt, yellow ribbon, zettai ryouiki