Lucifer is highly cruel and barbaric to those who get in his way, and despite his claims of being the victim, he has no qualms about killing anyone who angers him, even if he has no true reason for killing them. Lucifer has a sense of humor highly sarcastic at times and is usually indifferent, a testament to his arrogance. He has mastered the art of the silver tongue and has no shame using it to his advantage, though his anger sometimes gets the best of him and all eloquency is lost. As anyone could guess, he has trouble forming and keeping relationships that aren't just a manipulation scheme.