Good point. (Though she did ask a frog also, but that was probably more for comedic effect.) Then I think the obvious choice is Gwynn, because of her situation.

Well, Riff uploaded the specs for the DFA into this world's communal database before Cupidine showed up. So information on the DFA is already available to anyone who won the anima wars. My guess is that 'they' were too busy fighting among themselves and cleaning up minor players like Cupidine to pay attention at first. But Troloria claims to have been on her own for quite some time now. You think she would have found and digested the information by this point.

I understand that I did not answer your question - I merely pointed out that the premise of the question is good one way or the other...

Well. Just reading the specs doesn't mean she'd be able to fix it. Or understand the thoughts in Riff's mind.

You can show me the specs for a rocket, but I doubt I'd be able to build one

Right, Gwynn has a reason to not want to go back to their Earth (avoiding magical meltdown).

So uh do Anima make you immortal if you gather enough of them?

Well Troloria's been around for at LEAST 2000 years. So if they don't make you immortal, they make you mighty darn long-lived.