Devil

The is a mutated Phantasma that participated in The Great War. It created the Demonia race in a failed attempt to create more Phantasma. Without the Devil, the Demonia wouldn't be able to band together due to their instincts. Sora was frustrated that most information was contradictory about the Devil.

Appearance
As shown in Volume 12, the Devil has various forms, one of which is shaped like a small fury doll but this is only a fragment of him, his true form is described as an enormous and surreal structure that is unlike any building that ever seen before.

It was essentially a "non-Euclidean geometric object" which could be seen in the Cthulhu Mythos, it was violates intuition and cannot exist in three-dimensional space, appearing as an indescribable, twisted and incomprehensible otherworldly form.

Trivia

 * During the Great War Simulator game, Sora's meddling caused the Elves to attack Demonia and hunted their orcs to near-extinction. Seeing the misery of his creations, the Devil intervened and caused great loss to the Elves. However, the tables were soon turned when the Elves unveiled Aka Si Anse, the ultimate anti-Phantasma weapon.

Король Демонов 魔王