Arnes (アーネス) was a female archdemon who served under Wolbach. Anis appeared as a voluptuous woman with slitted yellow eyes, long red hair, and an ahoge. She also has demonic features such as pointed ears, horns, and bat wings. When she snuck into Crimson Demon Village, she wore a cloak that obscured her face and entire body, hiding her inhuman appearance. Underneath, she wore revealing, risque attire. Arnes was a genuinely loyal and caring subordinate towards Wolbach, and was devastated when Chomusuke failed to recognize her. While she was considered to be cunning, she was still outwitted by Megumin several times. Despite her power, she is repeatedly ambushed and forced to retreat.