A boy called Wraith

A broken mind wanders aimlessly, Fears inside of it like an orb in endless rotation. A boy that has partaken in an oath to rid the world from filth. He wanders around in constant hover as his body has been switch into a half wraith, A ghost for the power of destruction. Though this is the case, His mind remains pure and his spirits are high. Wraiths can see things other humans cannot, Ancient buildings, Different doorways... Other Wraiths... Wraiths that have succumbed to the evil inside of their soul. His goal is to vanquish these foul souls that wreak the earth of his purity. A normal wraith cannot die of normal means, but with a special weapon.. A sickle with a glowing sensation that is only able to be wielded by the pure. The boy is Half human also, so he is able to be seen by other humans, but they aren't able to see what he is truely is. Death is always imminent and he realizes this. Now Wraiths can take over a human soul and rot it away. The boy can resolve their souls, BUT.. He has only a limited time before the "Human" soul is completely consumed by darkness.