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 [[ushiromiya_ange|Ange]]. Set apart from her sisters by her long brown hair.

Named after Mammon, a personification (or deification) of avarice found in the New Testament.