The full name of the yu yu hakusho chatacter, Kurama. Youko is a fox demon who, in order to escape permanent death by a hunter, sent his soul to the Living World (Ningenkai) from Demon World (Makai), where he was born ("reincarnated") as a human boy, Shuiichi Minamino.
Then going by Kurama to those who know his demon secret, he meets up with Hiei first (with whom he is close friends), then the other characters.
He is both Youko AND Shuiichi, which causes him its own set of problems.

(noun) A successful type of theft which results in an acceptable, impressive and rewarding payday for the protagonist.