1girl, bat wings, black wings, blue hair, feet out of frame, frilled headwear, frilled shirt, frilled shirt collar, frilled skirt, frilled sleeves, frills, from behind, hat, mob cap, pink headwear, pink sailor collar, pink shirt, pink skirt, puffy short sleeves, puffy sleeves, sailor collar, shirt, short hair, short sleeves, simple background, skirt, solo, white background, wings, wrist cuffs