1girl, barefoot, closed mouth, feet, full body, greyscale, hands on own knees, knees apart feet together, knees up, legs, long hair, long sleeves, looking at viewer, monochrome, neckerchief, pleated skirt, sailor collar, school uniform, serafuku, shirt, simple background, sitting, skirt, solo, sweat, toenails, toes, v-shaped eyebrows, white background