Mamon

Mammon. He is one of the Seven Deadly Sins, embodying the sin of greed.
Appearance: a plump demon with four arms, resembling a jester. He has green eyes, green teeth, and a blue tongue. Mammon wears a green and dark green jester's hat with three bells and small dollar sign badges on the ends.
Personality: Mammon is very conceited and greedy; he doesn't care about the well-being of other demons, only about how much he can make off them. In public, however, Mammon acts friendly.
In his full demonic form, Mammon becomes spider-like: he grows four additional pairs of eyes, eight long and sharp legs, and his ribcage becomes pointed. Fizzarolli was Mammon's favorite and the face of his brand. Mammon extracted every possible benefit from Fizzarolli: selling merchandise and dolls of him, using him, and even creating robotic copies.
Mammon considered Fizzarolli something of an adopted son. When Fizzarolli was feeling unwell, Mammon would let him take a break to recover, but only so that he could perform perfectly.