satou kuuki, soukou seiki ysphere, game cg, large variant set, non-web source, official art, variant set, 1girl, :o, ayazaki shizuku, black hair, black skirt, blue eyes, blush, bow, bowtie, breasts, collarbone, cowboy shot, gradient hair, hair ornament, hairclip, hand on own hip, huge breasts, long hair, long sleeves, looking at viewer, multicolored hair, nose blush, open mouth, pleated skirt, purple hair, red bow, school uniform, serafuku, shirt, skirt, solo, teeth, tented shirt, transparent background