Menardi is a Mars Adept who along with her partner Saturos is a main antagonist in Golden Sun. She leads, along with Saturos, the original effort to break the seal on Alchemy and bring it back to the world of Weyard, and is opposed by Isaac's party all throughout the first game. She is the elder sister of Karst, who becomes an antagonist in a similar vein in Golden Sun: The Lost Age.