The Last Pendragon

In the beginning was the world, and the world was magic... Including all of it's inhabitants.
But that all changed for inhabitants of the world of blue five thousand years ago, after the annihilation war.

The war was between the drakes and humankind, and was one that knocked the universe off balance... the once unlimited nature mana got exhausted, and magic became history.

They were also spatial tears in different locations, which led to an alternate world... A very dangerous one.

But all hopes of magic were not lost for the inhabitants of the world of blue, because it was also discovered that powerful beasts in the otherworld, left behind magical relics when they die...
And the power of the magical relics, could be siphoned at the age of sixteen.