Yu Yu Hakusho Vol 30 King Urameshi

As Raizen's dominion comes to an end, a new era dawns. Former Spirit Detective Yusuke Urameshi now sits at the throne ruling over one third of Demon World. He now bears the incredible burden of maintaining a tenuous peace. But Yomi and Mukuro also know of Raizen's passing. As they prepare for a final showdown with Yusuke and his army, they are presented with an unheard of offer: A tournament to decide the next ruler of Demon World!! Contains three episodes: Every Demon for Himself, The Preliminaries and The Battle of Father and Son.