Yu Yu Hakusho: Ghost Files (1992)8.4 /10

Storyline:  One day, 14-year-old Yusuke Urameshi suddenly finds himself dead, having died pushing a child out of the way of oncoming traffic. Since he has such a bad personality, even the Spirit World was caught by surprise that he would sacrifice himself. Yusuke soon finds out he wasn't supposed to die and has a chance for resurrection and bringing his body back to life, but with one condition: He has to become a Spirit Detective.