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'.

Spoiler

She keeps Ange Ushiromiya company during her time at boarding school. She is the fantasy version of one of the servants that used to bully Sayo Yasuda as a child.