For a thousand years, the Reapers guarded mankind from the demons that wait in the dark. Now, at the beginning of a new age, the Reapers are betrayed and slaughtered. Only one Reaper remains - Red, and she's out to exact revenge.
21 year-old slacker Sam Oliver learns that his parents sold his soul to the devil before he was born, and now Sam has to repay the debt by becoming the Devil's bounty hunter, retrieving souls that have somehow escaped from Hell.
The story of a struggling manhwa artist, his long-suffering partner at the publication company who has feelings for him, and a strange 19-year-old girl dressed in ridiculous costume.