i think either one could be applied to someone of royalty. I do think the first might be the easiest way for us to play two royal siblings, and the second could be our commoner duo who could still be in close ties with the royalty on that side? What do you think?

I think it takes effect when spoken or written down so pretty much any attempt at communicating. They can speak of the demon in the first world but once you leave, you can't. So there are ways to get to it in this world but no one really knows about the hidden portals. But I think the game's point of the curse was to signify that it was hard to trust someone labeled as a traitor when they're claiming there's a different evil afoot when they don't have proof nor can really outright explain themselves. So I think that was meant to add to the tension and overall commanding power of the demon.

So I guess to explain it somewhat better...the twins (who are working apart from one another on opposite sides) would need to first take your characters to the other world in order to fully explain what's going on. Once they know and go back to the present world, none of them would be able to speak directly about the demon, other world, curse, etc. But going back, you're free to talk, etc. Does that help? So when recruiting new people, it might not always be possible to go to the world if a portal isn't close by, so some trust or lack there of, would be playing into some dynamics. 

We'll probably have to see how the group goes but this is my only week off between my semesters, so I'd rather keep things moving now than in a few weeks. But Yokai Watch is on tv right now...it's tempting. I'll probably have to get back to you next week to see how we're handling things. :3