Bloodedge

Bloodedge was an unsung hero of the Dark War whose lone act of resistance ensured the future victory of the heaven world and is one of the Six Heroes.

Information
Although it is not a widely remembered part of the Dark War, when the Black Beast first appeared it initially did nothing. This was due to the actions of an individual known only as "Bloodedge." He had gone to fight against this creature alone, and managed to singlehandedly delay its cataclysmic destruction for an entire year. This small window he created allowed the Six Heroes to teach humankind how to use Ars Magus, and to amass a greater and stronger following. He did not survive his valiant act of selflessness, but he did bring hope to the world in its darkest hours. His sacrifice also strengthened Jubei's resolve to defeat the monster, as he had personally bore witness to Bloodedge's final moments.

Bloodedge was the best friend of Star one of the six aforementioned heroes, who is one of the few people who remembered him and what he had done for the world. After Ragna had completed his training, Star gave Bloodedge's red jacket and weapon to his young apprentice. Ragna's title, " The Bloodedge," is in honor of this man. Ragna even speaks a phrase eerily similar to something Bloodedge once told Star.

As revealed by the light novel, Bloodedge is Ragna thrown into the past and stripped of his Azure Grimoire which was absorbed by Nu-13, who then became the Black Beast. As a result, a good portion of Ragna's memories were stripped away from him.

Appearence
"Bloodedge" looks almost exactly like Ragna minus the fact he is wearing his jacket on only one side. The other half of his coat hangs down freely. Another difference is that his right arm is exposed; normally covered by the black undershirt. However, it is covered in a black wrapping held together by what appears to be golden buckles at the top. His right eye is also completely closed from an injury that Celica couldn't heal.

Personality
For the most part, Bloodedge maintains the sardonic and hot headed attitude of Ragna and still partakes in calling others "idiots". However, likely due to the lack of memories, he no longer appears to be embittered by his hatred and his ill temper seems to have cooled down somewhat. His softer and more caring nature is shown quite a bit, especially towards Celica.

Powers and Abilities
Aside from the fact that he was a swordsman, nothing else is known about Bloodedge. However, he had to have been one of the most powerful individuals on the planet, as he had managed to singlehandedly halt the advance of the Black Beast for an entire year, in an era where the Ars Magus did not yet exist. Jubei himself also mentioned that Bloodedge "let that monster kill him" in order to save his friend, implying he could've fought on for even longer.