Mammon is the Avatar of Greed and is the second oldest of the seven demon brothers, Mammon has white, messy hair, tanned skin, and blue and yellow gradient eyes. True to his title of 'Avatar of Greed', Mammon is naturally greedy and always seeking out opportunities to profit without putting much work. Although he's the second eldest, he acts immaturely when he doesn't get his way and is the biggest troublemaker of the brothers. Mammon is a big tsundere, and is secretly scared of Lucifer.