Yuu☆Yuu☆Hakusho

Yusuke Urameshi has a reputation for fighting and trouble, so dying to save a child surprises even the spirit world. Given a chance to return to life, he becomes a detective responsible for supernatural threats crossing into the human realm.

His old rival Kuwabara and the demons Kurama and Hiei become allies against opponents far beyond ordinary street fighters. Training, dangerous battles, and conflicts spanning three worlds force Yusuke to discover what his strength is for and whom he is willing to protect.