Luneth is an orphan who originally occupied the town of Ur, which was also the birthplace of Abram in the Old Testament. His surrogate parents were Topapa the village elder and Nina the, uh...woman.

One day he was messing around in the Altar Cave when he fell like the dumb punk kid he was into a crevice opened by a recent earthquake. Relatively shallow into this new territory, he encountered the titular Altar--and, upon it, the Wind Crystal, which had apparently taught itself to talk.

Sir Crystal of Windy promptly told our protagonist that he was a Warrior of Light charged with setting out on a world tour of heroism in order to return universal balance between the opposing forces of darkness and light. He tried to contend that he totally had Slayer tickets, but the Crystal was not hearing it.