3girls, ahoge, black gloves, black hair, black shirt, black skirt, blue background, blue eyes, braid, exercise, fingerless gloves, gloves, hair flaps, hair over shoulder, happy birthday, long hair, looking at viewer, multiple girls, multiple persona, necktie, pleated skirt, red necktie, sailor collar, sailor shirt, shirt, simple background, single braid, single glove, skirt, sleeveless, sleeveless shirt, solid oval eyes, two-tone shirt, white sailor collar