Keikokumars

Arial is a soldier in the Human resistance against the Demonkind. 

After the destruction of the resistance he was given a chance to undo the past mistake.

Join as Arial went back in time and prepare to save his family and the world of humans against the Demons.
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Other synopsis

Tales of great heroes that fight dragons and demons, stories of evil monster and cruel men and cunning woman, of great heroes fighting great wars, the stories of their noble life and tragic death stretched across the stars, a thousand, and a thousand more, and a thousand more, glimmers of their battles, of hope and love and their struggles
How much stories, how many battles were fought, won or lost ?
They call it the Age of Heroes

Age of Heroes ( Age of Heroes Chronicles)

The Knight knows the secret of the Spear of Doom. Among other things.  How could Elkar not get shocked?

The Spear of Doom was the ultimate weapon of the First Generation.

It is the weapon which forced the Demon Kings at that time to sign the Accord and establishes the power base for humanity since that time.

Unlike Mikael, Elkar did not believe the stories of the Spear of Doom. A weapon that could destroy an entire continent in one day?

A poison gas that then spread for years, making the land near the area to be uninhabitable.

It is hard to believe. But to know not only that this thing is real, someone even knows where it is.

But to Astiel, these knights if not for the possession of the Necklace would not rank high on his list of priorities.

The reason was because the Knights wanted to use Asrana

Of course, not all knights think like this.

Limitless Elements