Malos

"Chaos? You think I created it? Please! That's a primordial force! It's been around far before I came to be. All I did was weaponize it, gain ownership of it. But, I am not just chaos and destruction. I am a key of balance, between the fine line of destruction and creation. A demon is not "evil", a demon is merely a product that shouldn't exist. An "existence that is a sin"."

- Malos, the Original Demon Malos (マロス, Marosu) is the being known more infamously as the legendary Original Demon (奇抜魔, Kibatsuma), believed to be the very first recorded "Demon" to ever live, whom all Demons soon came from, such as the Ahriman, with the sole exceptions of the Etherious. A being of massive power, Malos was known as the creator and originator of "chaos", the power that his Ahriman later inherited, albeit a much weaker scale compared to him. Malos was eventually defeated and killed for good by a human known as the "First King", which lead to the birth of the demons, his power residue shifting the world and changing it forever, by adding "demons", alongside humanity.

Known and feared as the Demon God (鬼神, Kishin), "the most powerful Demon in existence" by Azazel, its very existence, while considered merely a myth, is still well and alive to the modern times, known for having many names, such as Angra Mainyu (アングラ・真因湯, Angura Mainyu).

While dead at the current era of Earth Land, Azazel has mentioned that he strives to bring the Demon God back to the current era, quite literally forcing him back into existence via time travel, as part of the Seven Star, being one of his greater candidates, even earning the title "Ultimate Demon God" (究極鬼神, Kyūkyoku Kishin lit. Final Devil Divinity). On the other hand, Malakai, the Original Demon's literal power manifested as an entity, thrives to ressurect Malos using its reincarnation, the Vega Demon, to bring him back.

Trivia

 * Despite Malos' appearance, he is noted for lacking a gender, despite being commonly addressed as a "he".
 * According to Malvarak, in the ancient demon language, "Malos" means "Chaos God", referring to Malos signature dominance over chaos.