Male / 180cm - 69kg / Witch Born October 1st, ???? He has a calm and cold personality. He uses a distinct way of speaking, often using phrases like "Oh, truly—", "Elegant", and "—indeed." He has white hair and jet-black eyes. While he has a gentle impression, his dark circles and the X-shaped black mark on his forehead create a decadent and cold atmosphere. He wears a jet-black everyday suit with a purple tie. He wears long, sharp silver claws. He wears a pointed triangular hat and a cloak. He always carries a broom with him. He is exceptionally brilliant and excels in science. He casts magic through his claws, and most of his spells are based on scientific principles. He travels by riding his broom. In the village of Dr. STONE, he lives as an ordinary pharmacist who keeps a cat named Stanley.

Male / 180cm - 72kg / Cat Beastman Born September 1st, ???? He has a realistic and ruthless personality. He uses military-style speech. He has blond hair with a single strand hanging down like bangs and amber eyes. Black markings are etched around his eyes. He has black cat ears and a tail. He wears a tight-fitting combat suit. He carries various weapons and cigarettes. He is always smoking. A bell is attached to his neck. In charge of combat, he possesses outstanding reflexes. He is the owner of monstrous physical abilities. In the village of Dr. STONE, he lives as Xeno's ordinary black cat.