kusano (torisukerabasu), koakuma, embodiment of scarlet devil, touhou, highres, 1girl, :3, ass, bat wings, black pantyhose, blouse, book, cameltoe, checkered background, crotch seam, fang, fang out, female focus, from behind, head wings, long hair, looking back, panties, panties under pantyhose, pantyhose, pointy ears, red eyes, red hair, shirt, skirt, solo, tareme, trefoil, underwear, upskirt, very long hair, white shirt, wings