1girl, black socks, blouse, blue hair, blue panties, blush, brown eyes, female focus, from below, kneehighs, leg lift, looking at viewer, looking back, open mouth, panties, pantyshot, petticoat, pleated skirt, ribbon, school uniform, serafuku, shirt, short hair, simple background, skirt, socks, solo, standing, striped clothes, striped panties, sweater, sweater vest, underwear, upskirt, vest, white background