The Fallen: Demon Slayer

*Covering the Black Haired Yang Bloodstained Battle Robe, Riding the Iron Horse and holding the Killer Blade. Only the strongest can survive！
This was the best, and also the worst age.
In this different world which called the Sky Spill Road was filled with experts.
He as the teenager who slaughtered demons has eventually became a demon. 
People thought he will destroy this world.
But they did not know as the last surviving demon he was the key of saving this world.