If he wants to kill or hurt someone, he will not hesitate to do so.
Immortality: The vow had completely stopped Ruv from aging making sure that he will always live up his deal with Lucifer.So Sarvente and Ruv can live together forever, if either of them does not break the deal.Ruv was born in a poor environment without a normal childhood. He also didn't have any friends or a family. As a child, he had a very strong sense of justice and wanted to bring it to the world. He then eventually realize that people with higher ranks in society committed bigger crimes but could get away with it because of power. Eventually he would murder people that were corrupt in an attempt to bring justice.
