Yuyu Hakusho

From Viz: 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 spirit guide of the dead, and Koenma, her pacifier-sucking boss from the “other side.” But what strange things await him on the borderline between life and death. It includes a few omake and a post-mortem interview that explains his decision to end it prematurely. Note: Won the 39th Shogakukan Manga Award in the Shounen category in 1993