6+girls, animal ears, balloon, bare shoulders, blue eyes, cat ears, chino (valis), green eyes, green hair, halloween, halloween costume, horns, jack-o'-lantern, looking at viewer, majamari, multiple girls, myu (valis), neffy (valis), nina (valis), pumpkin, purple hair, rara (valis), red eyes, red hair, valis (sinsekai), vitte (valis), wings, yellow eyes