Trihexa

"I am the world. An extension of its being, like an arm, controlled by its whim and will. The "world's demon", if you will. If humans and gods can have an ugly side to them, then I would be considered the reviled force of the world. I am its desire for extinction. The subconscious existence that will lead to total annhilation."

- Trihexa, the Demon of the World Trihexa (トライヘキサ, Toraihekisa), known and reviled as the Demon of the World (魔の輿地, Ma no Yochi), is an "Arch" (アーク, Aaku)-class Demon, and the only one of its kind, a demon who was born from the very power of the Original Demon as a "force", akin to a Turavi. Trihexa was initially believed to be the collective manifestation of the world's evils, the reason behind its name, as well as the title of Ultimate Evil (究極悪, Kyuukyokuaku), while in reality, it is a demon who represents the "darker side of the world", its subconscious desire for the extinction of all life.

Trihexa is one of the few remaining ancient demons, making it on a league of its own, being even older than the Thirteen Calamities, making it a part of Azazel's Seven Star, being made part of the death battle planned for it and the others.

Trivia

 * The name Trihexa refers to the "Beast of 666", fitting for Trihexa's misunderstood role and existence as the manifestation of evil.