@SonicDisgaea98 Most of the demons in this series have their names from Solomon's Ars Goetia. Orobas is a demon who was described to have the appearance of a horse that is capable of changing into a man. The demons in this series more or less have some characteristics of the Solomon demons who their names came from. Like Naberius-sensei's familiar is a Cerberus because Naberius is described as a 3 headed dog.