Kurou Daijuuji is given the job of finding an occult grimoire by the powerful Ruri Hado, he accepts the money almost immediately, but his preparation for the job is questioned.

Kurou defeats Doctor West with the help of Al and Demonbane.; after the battle Al won't let Kurou escape.

Doctor West seeks vengeance after he is defeated; Kurou and Al attempt to recover Al's lost pages.

The Hado estate is invaded by members of the Black Lodge; Al and Kurou race against the clock to save Ruri.

Although a day on the beach seems like paradise to Kurou, Al's jealousy makes it a nightmare.

During a storm, Kurou and Al find a girl named Ennea, who has no memory apart from her name.