Yu Yu Hakusho: Season One

Yusuke Urameshi is nothing more than a 14-year-old trouble-causing-punk, who's always ready for a fight! But a single, selfless act results in Yusuke sacrificing his life for another person. Now, he's been given a second chance at life, instead of spending time in the afterlife. Put to work as a Spirit Realm Detective with amazing powers, he's tasked with tracking down demons and humans who desire to rule over the three realms of reality.