kousetsu, kagamine len, kagamine rin, ki ni naru ano musume wa kuroneko girl (vocaloid), kininaru ano musume ha kuroneko gaaru (vocaloid), vocaloid, bad id, bad pixiv id, 1boy, 1girl, animal costume, animal ears, arm hug, bespectacled, blonde hair, blue eyes, blush, brother and sister, cat costume, cat ears, gakuran, glasses, hair ribbon, nyan, ribbon, school uniform, serafuku, short hair, siblings, sweatdrop, twins