1girl, alternate hair length, alternate hairstyle, blush, cardigan, closed eyes, facing viewer, grey background, grey serafuku, grey shirt, grey skirt, happy, long hair, long sleeves, neckerchief, open mouth, pleated skirt, red neckerchief, sailor collar, school uniform, serafuku, shirt, simple background, skirt, smile, solo, upper body, white sailor collar, yellow cardigan