ラグナ・ニーズホッグ

Ragna is the partner and other half (in a metaphoric sense) of Misaki, a mercenary warrior who was once instructed by Dainslief (from Silverio Trinity).  He has an immense capacity for both love and hate, and he can be classified - by the Silverio universe's standards - as a fanatical martyr of the Light.  However, unlike most such individuals, he has a solid recognition that, as someone who can only move forward, that he is somehow broken inside, and he has no illusions that his prowess as a warrior makes him something glorious or great.  He, in partnership with Misaki, is the Godslayer Nidhogg, the evil dragon-serpent that chews at the roots of Yggdrasil.

 A series of events conspire to manifest Ragna Skyfield and Misaki Kujou on earth in place of Tina and Tesse Kujou, the humanoid AIs who serve as the living cameras of the Yamato. Having lost his memory and finding the similarly amnesiac Misaki next to him in the grassy field, they end up walking to the nearest village within Canterbury borders to find food and work.

When the village they spent four years of their existence in is destroyed and the inhabitants turned into crystallised trees by the Gods' experiment, Ragna manifests Fimbulvetr for the first time together with Misaki. When Glenfarth and Ragna clash, the resulting impact sends Ragna and Misaki out of Canterbury and into Antalya lands. They eventually end up at the Liberati household, and their quest for revenge together with Cecile begins.

In addition to his ability to manifest Fimbulvetr, Ragna is also capable of manifesting red crystal Astrea no bigger than knives. This is of great interest to Ouka and the other Gods as they have spent a thousand years finding a way to allow others apart from themselves to crystallise Astrea.

His true identity is an avatar of Yamato imprinted with Kujou Haruto's knowledge and expertise, akin to how an amoeba divides into two perfectly identical selves. The same principle allows to Kujou Misaki with Misaki Kujou as her "parent".  /