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