You are the sole survivor of a devastating attack on the monastery where you were learning the skills of the Kai Lords. You swear vengeance on the Darklords for the massacre of the Kai warriors, and with a sudden flash of insight you know what you must do. You must set off on a perilous journey to the capital city to warn the King of the terrible threat that faces his people.
You are now the last of the Kai. You are now Lone Wolf.
The choose-your-adventure books about Lone Wolf, last of the Kai, are available for free online. Every single one of them. This is pure awesomeness.
The first two are also available for your Nintendo DS, if you have a mod cartridge like the G4 or DSTT. Go get them!