Satan Blue-Exorcist

"Bwahahaha! The way you humans think is unnatural. The weak fall and the strong rule. Devouring and multiplying as nature dictates on the path of destruction. That's nature! You humans avoid the truth. You deny it by calling it wicked and detest it because it's demonic. But they are the stuff of nature. Demons are the way of all things! The true nature of all living things is the demonic! In other words, human nature is also demonic! You humans deny nature...and mistake yourselves for something special! It's absurd...It's disgusting! You hide your true nature! You are shallow, vulgar, foolish, hideous beasts! That's what you humans are! I am the Demon God and you've really pissed me off! So be ready for what comes next! In the face of the irrational, unfeeling and cruel violence of natural phenomena, you will know despair!" Satan is the main antagonist of the manga/anime series, Blue Exorcist. He is the father of the Okumura brothers, Mephisto Pheles, Amaimon, and Lucifer, and is the demonic ruler of Gehenna. It has been said that he is the creator of every demon in existence. Satan wants to merge Assiah and Gehenna to make one joint world, but cannot fully exist in Assiah because there is no vessel strong enough to contain him.