Maria Anderson (マリア・アンダーソン) is Ghislain's assistant.
Marie has long blond hair which she has tied behind her head. She wears glasses, a dark colored shirt and skirt, and a white lab coat.
As Ghislain's assistant, she mainly takes care of him, but can get annoyed at how dense he can be sometimes, such as when he mentioned that he'd be sad if she died, but only because she was the only Darwin's Game player he could talk molecular biology with.
Sigil: As a Darwin's Game's player, Maria is assumed to have a sigil.