[Serph has to think about the answer to the question; he doesn't know where the cat came from. It certainly didn't belong to the Junkyard, but he has a hard time believing that Sera or any of the researchers created the cat. So where did it come from?]

I don't know. But I found a cat in Nirvana that looked just like it. I'm sure it's the same cat.

[It's hard not to recognise the same all knowing stare.]

Nirvana is the world that created my original world. Different to our current destination, though it has similarities to our current situation.