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. Despite his human appearance, he is actually the Dragon of Water—the Hydro Sovereign. As the Hydro Dragon, he is a lonely soul; separated from those around them and even though he has integrated into human society, he is unable to feel accepted.