hei tudou, arknights, character request, highres, 1girl, animal ears, bikini, black bikini, black choker, black jacket, blonde hair, blush, breasts, cat ears, cat tail, choker, drill hair, ear piercing, extra ears, hair ornament, hairclip, jacket, long hair, long sleeves, looking at viewer, midriff, morpheus (arknights), navel, open mouth, piercing, red eyes, simple background, small breasts, smile, solo, swimsuit, tail, thigh strap, twin drills, white background