Representing the demon Mammon and the corresponding sin of Greed. Mammon's appearance is a girl with long brown hair. She is extremely greedy, and will do anything to get what she wants. She is the third youngest of the "Stakes of Purgatory." She keeps Ange Ushiromiya company during her time at boarding school. She is the fantasy version of one of the Ushiromiya family servants. Her prototype Manon was the only one not to bully Yasu because at the time of her arrival at Rokkenjima, Yasu already became Shannon. On the contrary, she was friends with Shannon.