1girl, ahoge, anniversary, black gloves, black hair, black serafuku, black shirt, black skirt, black socks, blue eyes, braid, feet out of frame, fingerless gloves, gloves, hair flaps, hair over shoulder, happy birthday, legs, neckerchief, pleated skirt, red neckerchief, scarf, school uniform, serafuku, shirt, simple background, single braid, skirt, smile, soaking feet, socks, socks removed, solo, white background, white scarf