Er...wouldn't it be impossible for Lenne to be Oaka's sister? ... (SPOILER) Lenne is DEAD, and she died ONE THOUSAND years ago. So I guess Oaka is 1000 year olds, eh? Woo, I guess people in Spira don't age physically.
And yes...(SPOILER)Shuin is the bad guy.
And no...(SPOILER)Lenne is not evil. And she is not a clone.
Hope that helped.
