One of Umineko No Naku Koro Ni's Seven Stakes Of Purgatory, and representative of the deadly sin of greed. The fifth sister, and the one with the closest relationship with Ange. Set apart from her sisters by her long brown hair.
The human she is based on is Manon (Umineko).
Named after Mammon, a personification (or deification) of avarice found in the New Testament.