Bukaru is a old hermit living in a desert oasis. He claims to have spent 5 years serving King Coltzan in the marine corps. He gave it up, and now dispenses wisdom instead.
In NeoQuest II, he served as part of the space ship's systems access program.
I don't need to answer your questions!
As most of Neoquest II takes place within a computer simulation, it is unclear if Bukaru exists in the real Neopia.