The Demon Queen (called Maou) is over a hundred years old, appearing as a young woman with long red hair, ruby eyes, horns, and a voluptuous figure. Cheerful, relaxed, and intelligent, she hides deep foresight behind a playful attitude. Though physically weaker than past Demon Kings, her true strength is knowledge and strategy. Her main goal is to end the human–demon war through alliance, seeking lasting stability rather than meaningless bloodshed.