Malvarak

"You must realize this, Mephistopheles, that your words hold more power than your magic. Even one word, like a simple "No", can trigger a chain of events beyond your control. I beg of you, Mephistopheles, choose your words. Do not spit them."

- Malvarak doing his duty as Shaitan's advisor Malvarak (マルバラク, Marubaraku), also known as Mal (マル, Maru) by his friends, is a Demon that is among the founders of Gehenna, playing a fairly minor role in its foundation. Formerly a powerful soldier among the Demon army during the Dragon Civil War, he was severely crippled in his final battle, resulting in him no longer being capable of physical combat, resulting in him taking the role of a strategist, before the foundation of Gehenna began, where he later became the late Mephistopheles' advisor, before his daughter, Shaitan, took his title after his passing, becoming her advisor as a result.

Later in life, several centuries later, during a minor battle against an opposing army, resulting in a small village being destroyed as a result, Malvarak found two infants, twins who were abandoned on the streets, and filling pity for the helpless children, took and raised both of them in secret as best he could, until their adulthood, in which he allowed them both to go on and live their lives, no longer in danger of being executed for being human in Gehenna.

At another point, Malvarak grew a passion for writing, having written several books about the battles he participated in during his life, which eventually lead him to become an author, using the pen name of "S.T.K" (エスティケー, Esu Ti Kē), an anonymous author, having managed to publish his novels based on his life, using the help of his adoptive daughter, Halvard Rider, becoming a rather popular author as time went on, but keeping said fame a secret from his peers, in fear of being punished for indulging himself in the society of humans.

Trivia

 * The the letters "S.T.K" of the same pen name are derived from "Stephen King".
 * "Satanic Script" is named after the "Satanic Scripture", the book of the Church of Satan in real life.