1girl, black hairband, black ribbon, black sailor collar, black skirt, blue eyes, blush, classroom, closed mouth, collarbone, desk, grey hair, hair ribbon, hairband, hitodama, indoors, neckerchief, on desk, pleated skirt, red neckerchief, ribbon, sailor collar, school desk, school uniform, serafuku, short hair, short sleeves, sitting, sitting on desk, skirt, solo