Suzaku Demon

He was a very talented flute master in the past. However, due to his envy, he turned into a demon who invited people to a game and told them that if they won, he would offer them the most beautiful woman in the world. Even if he is not an evil demon, he takes from the losers what they offer. Even though he is a devil, he has not lost his ability to play the flute very well, and he is the one who gives the main character his flute.