Neuvillette is the Iudex of Fontaine, and the leader of the Marechaussee Phantom. While Neuvillette upholds the rules of the court with utmost reverence, he is quite aloof when dealing with human emotions and often distances himself from the public eye. This is his Dragon of Water form as the Hydro Sovereign. With his role as the Chief Justice, Neuvillette takes the court and trials very seriously, handing out verdicts with impartiality. He is notably perceptive.