Illuminati

The Illuminati is an extremely rich and powerful organization that has access to technology previously through to not exist, such as that which opened a fake Gehenna Gate. They front themselves publicly as an orgnization known as the Bright Future Foundation, which sponsored the changing of Inari, to a tourest destination, using the area name as a forefront for their activities. Underneath the surface, however, the Illuminati conducts experiments on how to force-possess Demons into a human being.

Strength.
The Illuminati houses many powerful individualsm such as Saburota Todo; a man who revived the Impure King and ate seceral Demons, one of which was the deity of Karura, without any adverse side-effects. In Their arsenal, they also have the deceptively strong Renzo Shima, who has the abilities of a Knight and a high-class Tamer. Above all, however, they are led by the King of Light, Lucifer, who, even in his current state, is the most influential man in Gehenna, as well as being much stronger than Mephisto Pheles. Who, himself stands as the second strongest of Gehenna's Eight Demon Kings.

Goal.
The main goal of the Illuminati is forceibly merge, Assiah and Gehenna and "return the world to the original state from which both darkess and light originated", during which they also plan to completely revive Satan, the Lord of all Demons, creating a world free of afflication and one true peace.