Dantes is a tall man with a long plum mullet and matching eyes, which can also be seen glowing red with slit-like pupils. He wears a stark white suit over a burgundy shirt and waistcoat, complete with a slender lavender scarf and a golden-yellow tie. Dantes also wears a brown long coat with a black fur trim and black leather shoes with golden buckles. He wields a large cruciform sword in combat.
Dantes has a fixation with the concept of fear, perceiving it to be the driving force of existence and to underlie everything.
Originally Gerard was a member of the D∴G cultDantes was frustrated with the failing of his former superior, Enrique and killed him, taking over Almata..
Dantes first appears in Episode: "Beyond the Reverie, And the Sword Maiden Moves On" 創まりの先へ, そして、乙女は剣を手に進み続ける. However, no illustrations of him are shown and his name is not given. Additionally, his organization is only referred to as A.
This episode is set in September of S. 1207. Bracer Elaine Auclair was searching for two children kidnapped by a low-level organized crime syndicate. Said syndicate had aspirations of becoming subcontractors for Almata. Thanks to the assistance of a member of the CID, Auclair was able to track down the location of the syndicate. She easily subdued all of its members before Dantes suddenly appeared. Dantes, disappointed by the syndicate being outwitted and found out, brutally and effortlessly executed all of its members, and also succeeded in subduing Elaine, and used his power to even conceal his presence from her. However, he spared the kidnapped children, and informed Elaine of where she would find them unharmed. He claimed to be pursuing the "ultimate fear", and called fear the driving force behind existence, before escaping.
Gerard is first seen experimenting with an Octo-Genesis in Tharbad.
In Chapter 5: "White Night Carnival" (白夜のカルナヴァル), Gerard detonates an unfinished Reactor Weapon in Creil. Over a thousand individuals, including Dingo Brad, fall victim to the explosion. On November , Van finds Gerard with Melchior at his side in Vashtar Palace Ruins, Oracion. Here, he reveals his name is actually Gerard Eldarion (ジェラール・エルダリオン) and a descendant of Calvard's fallen monarchy. He wields the battle Apeiron (聖魔剣アペイロン), a sword both a 'Holy' and 'Demonic'[Note 1] that was passed down within the fallen Calvard royal family. The Septian Church's attempts to retrieve Apeiron after the fall of Calvard Kingdom were futile, for the sword was kept safe in the D∴G cult.
He is killed in battle by Van.
When Melchior creates the Clock Tower by using the Seventh Genesis, Gerard rises again as an Immortal due to his life being tied to the Ultimate Fear Core. Van finds him at the top and fights him in Demon form, later killing him again (for real) and taking the core.
- Gerard is the only antagonist in the series who is killed by the main character himself and after only one game of being an antagonist.
- Melchior is called his "lover", though Gerard doesn't seem to see him as more than a simple subordinate.
- Kuro no Kiseki, Chapter 5: "White Night Carnival" (白夜のカルナヴァル), 11/22.