Fnaf Sister Location lore

Now can somebody help me bc I think I found something that might change a lot of things... Who was watching over the room in Sister Location? Was it William or Michael? Well it might be neither, watch: Markiplier sister location part 2 in there he says that in the game, a she is watching. Not a he. Who is she? Why does she have access to the cameras? Theorists do your thing.