Hannah Anafeloz (ハンナ・アナフェローズ, Hanna Anaferōzu) is the demon maid of the Trancy household. Hannah is extremely loyal to Alois; her biggest ambition is to provide Alois with happiness, and thus, she endures his abuse.
Before she met Luka Macken and formed a contract with him, Hannah was an apathetic, bored demon who had the demon triplets subjugated under her. She had grown tired of eating human souls and was uninterested in them until Luka appeared, asking for a contract to destroy the village that caused his brother’s tribulation.
His sheer innocence and determination for Alois’s happiness made her realize that he is different from other humans. Hannah decided to fulfill his wish to kill the townspeople, and he thanked her before dying, something no other human had ever done. This caused her to be attached to Luka, and she was mournful when devouring his soul.
Hannah retains Luka’s soul inside her, and she soon watches over Alois by becoming his maid. Apparently, she has adopted Luka’s desire for his brother’s happiness and works to accomplish that as well.