William Twining has it all - a sharp intelligence, dashing good looks, and a noble station in life. There's only one problem: he's broke. William's logical worldview is about to take a hit when he comes across a mystical seal which he unintentionally uses to summon a demon. The demon's name is Dantalion, a Grand Duke of Hell, who informs the young nobleman of his destiny, that he is the new 'Elector' whose sole responsibility is to appoint the next ruler of Hell in place of Lucifer. None of this can possibly be real - can it? - and besides, he's got bills to pay.