When the United Kingdom is suddenly overrun by demonic creatures from another world, the people begin to grow accustomed to the spontaneous violence and chaos that has invaded their lives.
Just when it seems like there is no end to the conflict, a lone wanderer, wielding a sword of unimaginable power, suddenly appears to slay the demonic plague.
The man's identity, history and very existence are a mystery, simply going by the name: Drifter.
A hero to some and a devil to others, Drifter acts upon his own whim, caring little for the consequences of his actions. However, a chance encounter with a young, stubborn destitute may help him regain his humanity in a world of monsters.