koakuma, touhou, absurdres, commentary request, highres, 1girl, bat (animal), bat wings, black pantyhose, black shoes, black skirt, black vest, book, collared shirt, demon tail, envelope, full body, hand up, head wings, heart, holding, holding book, long hair, looking at animal, mary janes, necktie, pantyhose, puffy short sleeves, puffy sleeves, red eyes, red hair, red necktie, shirt, shoes, short sleeves, simple background, skirt, skirt set, solo, suwell, tail, vest, white background, white shirt, wings