1girl, animal ears, areola slip, arknights, black cape, black dress, black hair, black skin, breasts, cape, cloud, cloudy sky, colored skin, covered navel, dress, earrings, fingernails, genderswap, genderswap (otf), hair between eyes, holding, holding sword, holding weapon, horns, jewelry, long fingernails, long hair, long sleeves, looking at viewer, medium breasts, nail polish, necklace, outdoors, parted lips, pelvic curtain, red eyes, sawaki ken, single horn, sky, solo, sword, thighs, very long hair, weapon, wide sleeves, ya (arknights), yellow nails