Rindou Mikoto swimsuit/nijisanji(竜胆尊水着/にじさんじ)

recommended prompt:Rindou Mikoto swimsuit/nijisanji,1girl, long silver-purple hair tied in twin ponytails, small 2 horns on head, long elf-like ears, purple eyes, thick shaved eyebrows (maro eyebrows), eye makeup, beauty mark near mouth, small fang (yaeba), frilly black bikini with lace trim, frilled mini skirt-style bottom, detached frilled sleeves, black choker with a purple crystal pendant