Well if we're dumping exposition, allow me to explain.
A while back, little Setsuna here was a horrid criminal, a murderer even! She had no emotions, no friends, nothing. Aw, how sad; but then me, being the nice guy I am, gave her a purpose as my lapdog! She did everything I said without question, and all out of love! Unfortunately, a few do-gooders decided that what they wanted was more important than what made the dog happy, and she ran off. Now look at her, it makes me sick. Her knowing a bit of my plans only complicates things further, so I'm afraid this dog is going to need to be...put down.
As for PK, he stuck his nose in an operation I was running for a friend some time ago, really threw a wrench into the whole thing. So, I figure I should get my payback on him, and nake sure this mutt will never live to see all those errands she ran for me culminate. So, that said, do me a favor and exit stage left. You don't have a part to play in this little show, so run on back to that gremlin with your tail brtween your legs like a good little girl, 'kay?