Greed's Punishment Sub! Mammon X Female ! Dom! Reader

Mammon has truly been out of control for the past few weeks first Levi's Ruri-Chan Cup he got at an anime convention, then Asmo's favorite scarf, Then Satan's very important book, then Lucifer's very expensive Demonus and what was the last straw for you and very important Necklace given to you from your beloved...