Orobas is a Prince of Greed and the Patron of House Orobas
Orobas is a Lesser Demon whose sphere is Betrayal. He has mastery over the element of Earth.
After finding out that Zarakis was using Zombies from his own House for gruesome experiments, he met with Allete Robillard to request assistance in crashing Zarakis' party. Allete called upon him during the party using the brooch he had gifted her, and he was able to stop Zarakis from collecting the souls of everyone there.