Grysilis Derro

"Everyone dies someday. Wouldn't dying while contributing to the foundations of magic be much more meaningful?"

- Grysilis to Eleonore in "Spirited Away"

Grysilis Derro (ギリシリス・デッロ) is one of the Four Evil Kings, known as the Scarlet Stele King (緋碑王).

Appearance
Grysilis dresses in luxurious clothes and wears a large hat. His face is completely smooth and featureless, and his body is made of a gel-like substance. It is impossible to tell that he is a man from his appearance alone.

Personality
Grysilis takes great pride in his magic research and thinks highly of his prowess in magic. He goes to great lengths to research magic and is willing to sacrifice people and use them as guinea pigs in the name of research. He believes that everyone will die someday so their death should contribute to the advancement of magic. In combat, he is the type of a person to lure an opponent into a trap and cast the first spell rather than challenging someone directly.

History
Following the Hero Kanon's plan, Anos' loyal subjects and even the powerful demons who didn't get along with him moved away from Dilhade. Grysilis, in particular, chose to go to the Spirit School because it was a great place to study magic.

Great Spirit Arc
Grysilis was surprised to meet Anos in the Spirit School after two thousand years, but soon became hostile towards him. He tries to provoke Anos into attacking first, which would infringe on the school's rules, but fails, so he moves on and sits in class.

Abilities

 * Immense Magic Power: As one of the Four Evil Kings, Grysilis is considered one of the most powerful demons of the Mythical Age, as he possesses an extraordinary amount of magic power. However, because his source reached the limit of its potential to grow, his magic power is lesser in comparison to other extremely powerful Mythical Age demons such as his fellow Evil Kings and especially the Demon King Anos, which he greatly resented and tried to find a way to overcome this weakness.
 * Gelatinous Constitution: Grysilis magically altered his body to allow magic to easily travel from his source. By circulating magic particles throughout the gel, Grysilis increases the efficiency of his magic and improves his spellcasting. His body glows with black light when prepares for combat.
 * Nigh-Immortality: Grysilis researched Hero Kanon's source magic and split his own source into seven quasi-souces, allowing him to use Agronemt when one of them is destroyed. As long as Grysilis has magic power he can continuously resurrect himself from virtually any attack. However, splitting his source made him weaker overall.

Anos Voldigoad
Grysilis greatly despises Anos, and the sight of his face makes him sick. He believes Anos holds much power yet contributes nothing to the development of magic.

Zaburo Gaez
His second-in-command. Like him, Zaburo prioritizes research and is not above using people as test subjects.