Hey, so I suppose I should ask:

How do you want our character to meet? Through the tournament as opponents or paired up together as teammates? 

Also, I'm trying to formulate an endgame in my head and I've been having trouble. So far, I've got a few scraps:

-The invitation was sent by a man who knew Vol's father(a disgraced military officer who was supposedly killed just before Vol was born). He wished to draw him out, evaluate his abilities and then send him on a personal quest to go and find his long lost father. Princess can come along as a kind of bodyguard/trainer to help along. From there, we can freewheel it, but I was thinking that the endgame could be divinely related, as in beings of divine power are attempting to crash through into the realm and they have to stop it...

Heh, I'm drawing a blank. 
Any ideas? xD