jin young-in, kagamine len, kagamine rin, vocaloid, bad id, bad pixiv id, 1boy, 1girl, ahoge, alternate costume, alternate hairstyle, bare shoulders, bat wings, blonde hair, bloomers, blue eyes, blush, brother and sister, candy, crossdressing, earrings, flipped hair, food, food-themed clothes, food-themed hair ornament, hair ornament, hair ribbon, halloween, jack-o'-lantern, jewelry, lollipop, midriff, nail polish, navel, necklace, off shoulder, open mouth, orange nails, patterned legwear, pumpkin, pumpkin-shaped pants, pumpkin hair ornament, ribbon, shorts, siblings, smile, striped clothes, striped thighhighs, swirl lollipop, tail, thighhighs, trap, trick or treat, twins, underwear, wings, zettai ryouiki