Mammon as Illustrated by Nitroplus.
"Ye~s, this medicine will make you healthy~. I'll leave you a bottle at one million yen."
Mammon is the Demon of Greed, known for great attainment of wealth.
Mammon has waist-length blonde hair with two huge curled horns pointing downwards, from the back and top and center of her head.She has a set of four black and red wings sprouting from the small of her back, which acts like a half-skirt to cover her butt and which she can retract to hide them. She wears an ornate black sleeveless top with a neckguard and a large breast window, and a black thong panty with a heart logo. On her arms, she wears ornate fingerless opera gloves, and on her legs, she wears ornate thigh-high flat-heeled boots.
The Demon King Lady Mammon is a single mother with a very soft demeanor and a kind expression as well, who is shouldering the huge debt left by her husband.
Because she has to feed more than 500,000 children, she mixes dangerous medicines and sells them off at a high price. For trading partners, she doesn’t discriminate between demons, humans or angels, as she ruins them anyways. However, because she has a rare kind of unlucky attribute, rumors have it that her life’s not that easy.
From her manipulation of medicines, it seems she has knowledge in alchemy.
Mammon's name and character appear to be a reference to Mammon , one of the seven Princes of Hell.