Malevolent supernatural entities created by Lucifer. They are the embodiment of pure evil, and take joy in the torment of the human race while in Hell. Many humans meet demons through usually a deal, they try to make with one, although the humans may get what they want they seem to win in the end. Demons cannot exist in their true form on Earth, they usually take a human vessel, unlike angels by force. Usually the human inside experience what the demons do while in their bodies and have to live with the horrors of it if the demon has been exercise. While Demons do not have ranks like angels they do have a King or Queen of Hell, leader of all demons. Usually the eye color from when they possess human tell the kind of power they have, Red Eyed Demons are the weakest followed by Black, Yellow, White being the strongest. There are other unique demons with unique colored eyes.