Ken Kurosawa is a clever hitman and karate fighter from Los Angeles. His one and only reason to fight is to take care of his sick little sister, Mariko. But then Ken is murdered with a bomb-car. His last wish is to be with his sister in her birthday and take care of her forever. Seven years later, Ken is back on Earth, but now as a Hellspawn. Now, he most survive using his new powers from Hell against the new threats surrounding him, his old friendships and his little sister Mariko, who is now turning into a famous actress