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