Grau is one of Emelious' underlings. Yuki's party doesn't fight him at all, but he is seen in various cutscenes and is believed to be the brains of the operation. He betrays Emelious at the Surmania Tower and stabs him in the back with the Godkiller while he was trying to save Alfina. He then proceeds to call upon Xorn and asks him for power. Xorn's tendrils impale him and turn him to glass.