Demon King of Fury

The **Demon King of Fury** was one of the five Demon Kings that ruled Helmuth and the Demon Race. He was slain by the Five Great Heroes 300 years ago.

## **Personality**

Fury was considered unusual among the five Demon Kings. Unlike the others who merely took on capable subordinates, Fury had adopted his direct subordinates as his adoptive sons and daughter and was noted to have genuinely loved them. In return, he was loved and seen by them as their father. As noted by Hamel, after he was inflicted with critical wounds and was dying, instead of using his remaining power to make one last attempt to kill the Heroes, he instead decided to use his remaining power to teleport his surviving children, Iris and Oberon, to safety. Something that was so out of the ordinary and unexpected from a Demon, much less a Demon King, that it even stunned and confused the Five Heroes long enough to allow Oberon and Iris to escape.

## History

The Demon King of Fury was one of the five demon kings active 300 years ago who ravaged the world and waged war against humanity. During his time as Demon King, Fury was noted to have adopted some of the most powerful members of the Demon Sub races as his adoptive children and commanders of his army.

As stated, the Demon King of Fury adopted the Chief of the Giants, The “Earthshaker” Kamash, the Vampire Lord, “Bloodshedder” Sein, the Lunatic of the Beastfolk, “Depraved” Oberon as his adoptive sons and the Dark Elf Princess, “Rakshasa” Iris as his adoptive daughter.

Eventually, Fury would be targeted by the Five Great Heroes and become one of the three demon kings to be successfully killed by them.

### Legacy

Upon his death, his two surviving children, Iris and Oberon would state their claim as his heirs and would attempt to become new Demon Kings and continue their adoptive father’s legacy. However, despite their own impressive powers, neither Iris and Oberon would be able to claim the empty seats for the following 300 years, with Oberon even ending up being killed by his own son and leaving Iris as his last surviving adoptive child and heir. Jagon, Oberon’s son and killer, had likely inherited some of the power Oberon received from the Demon King of Fury, making him a “descendent” of the Demon King and thus a potential inheritor of his powers, albeit an unofficial one.

After his death, his army was noted to have scattered and divided between the remaining rulers of Helmuth. With the deaths of Sein and later the death of Oberon after being murdered by his own son, the Vampires and Beastfolk scattered and eventually came under the control of Noir Giabella. Iris, as his sole surviving adoptive child, proclaimed herself as Fury’s heir and set up a strong claim and platform in Helmuth is currently building up power and influence to take one of the three empty seats as a new demon king using her Dark Elves. The surviving giants did not proclaim themselves as his heirs and was stated to have instead moved to the backwater territories of Helmuth.

Later, after the death of Jagon, his adoptive son's Oberon's son, his only surviving adoptive child and now sole heir, Iris began having dreams regarding her father and adoptive siblings that then lead her to the Solgalta Sea after becoming the Pirate Empress and terrorizing the seas of the kingdom of Shemuin, where it was revealed that the Demon King of Fury had sealed a bulk of his power underneath the sea floor for one of his adoptive children to find and absorb in order to become the new "Demon King of Fury".

## Abilities

As one of the Five Demon Kings of the Devildom of Helmuth, Fury was one of the most powerful Demons in the world and had power far surpassing humanity.

Credence to Fury’s power was that he was ranked third among the Demon Kings, putting him right behind the absurdly powerful Demon King of Destruction and Demon King of Incarceration and superior to the Demon King of Cruelty and Demon King of Carnage. Furthermore, unlike Carnage and Cruelty who both had signature weapons with immense power, Fury possessed no such weapons, implying that he was superior to them in terms of unique powers and demonic abilities alone.

### Demonic Abilities

Like all Demons, the Demon King of Fury likely possess the ability to passively generate Dark Power or Dark Mana which he could then use to fuel his powers. As a Demon King, Fury likely possess gigantic amounts of such Dark Power that easily surpasses the average demons and the amount of mana possessed by humans.

* **Fear Empowerment:** Fury, like the other Demon Kings, possessed the power to increase and gather power by the collective "fear" possessed by the masses towards him. This power operates similarly to the "faith" the Holy Empire of Yuras has towards the God of Light, greatly increasing and magnifying Fury's power based on the collective fear the population of the world has towards him.
* **Empowerment:** After adopting Kamash, Oberon Sein and Iris, it was heavily implied that he had infused all four of them with his Demonic Powers and Dark Mana. Granting each of them a variety of powers and abilities that only increased their innate power.
	+ **Demon Eyes of Darkness:**  The Demon King of Fury possessed the unique ability to give his subordinates the Demon Eyes of Darkness, granting them the ability to create and manipulate darkness for a variety of effects and abilities. Having given such eyes to his adoptive daughter Iris.
* **Insects:** Using his powers, the Demon King of Fury was capable of creating swarms and swarms of flesh eating insects that would travel across the lands devouring and feasting on the flesh and blood of humans. During the war 300 years ago, Fury granted his adoptive son Sein, the Vampire Lord, command over the insects.
* **Fury-Insanity Inducement:** True to his name, the Demon King of Fury was capable of inflicting irrational "fury" towards those exposed to his Dark Power. As stated by Hamel/Eugene, Fury was capable of driving hordes of humans into insanity by inducing an irrational feeling of "fury" on his victims that causes them to completely lose the ability to differentiate friend from foes and attack everyone around them regardless, with some of the worst cases even causing his victims to outright kill themselves due to the irrationality inflicted on them.

## Trivia

* Unlike the other Demon Kings such as the Demon King of Cruelty and the Demon King of Carnage, the Demon King of Fury possessed no unique weapon, instead he possessed a powerful army that composed a variety of unique sub races of Demons and had his four powerful adoptive children, known as “ **Fury’s Four Heavenly Kings**”, act as its commanders.
* The Demon King of Fury’s personal symbol and sigil is a upside-down goat’s skull, the horns of which had an unusual form. They were actually two pairs of horns growing out of the same base, one curved and one straight.
	+ After his death, Iris continued to use his sigil, having adopted it for herself.
* Due to Fury’s obsession with “playing house” with his subordinates, he had excessively given out and distributed much of his own power to empower them, resulting in him becoming considerably weaker than even the Demon King of Cruelty and Demon King of Carnage.

## References

1. ↑  Chapter 361: The Devildom 2
2. ↑  Chapter 363: The Devildom 4
3. ↑  Chapter 365: The Devildom 6
4. ↑  Chapter 369: The Demon King of Fury 3