Detective Kuro Daydzyudzi long been grounded. Suddenly - unheard of luck! - He is offered a high-paying job, and comes from a powerful order of the corporation "Hado", which is run by one and all in Arkham City. However, the order is going to be dangerous - the young president, Ruri Hadodemanded the detective to find a real grimoire - a book of spells, but for such rarities hunt militant sect and sinister Black Lodge... But, whatever you do for cash!