Yusuke Urameshi was a tough teen delinquent until one selfless act changed his life...by ending it. When he died saving a little kid from a speeding car, the afterlife didn't know what to do with him, so it gave him a second chance at life. Now, Yusuke is a ghost with a mission, performing good deeds at the behest of Botan, the ferrywoman of the River Styx, and Koenma, the pacifier-sucking judge of the dead.

They call themselves the Black Book Club: a consortium of billionaires who gained their wealth and power by dealing with evil demons. One of them has kidnapped a beautiful ice spirit named Yukina, tormenting her for the sake of her priceless crystal tears. Can the law-abiding entities of the Underworld tolerate this depravity? Of course not! That's why Yusuke, teenage delinquent and part-time Underworld Detective, has been dispatched to rescue Yukina and break up the Black Book Club.

Fighting alongside Yusuke is his friend and rival Kuwabara, who has fallen in love at first sight with Yukina. But if Kuwabara knew her family connections, he might not be so hot for the ice maiden. And Yukina's kidnapper isn't about to give her up without a fight. To destroy Yusuke and Kuwabara, he's hired nothing less than the Brokers of Darkness, demons so powerful that even the Underworld fears them. Yusuke and his friends are about to find themselves in the center of a demonic battle royale...