As far as relating concerns Ryanti, it's Nymeia. Fate is one of the strongest themes of Ryanti's character development. As regards to his actual faithful beliefs... I haven't figured that one out yet.
Althyk, the Keeper
She's actually going to believe in him heavily after the 5 year skip, but I'm not 100% on her belief system yet. I just know this will be her guardian.
Uruvion is agnostic, laughing at those who continually pray to the gods, considering them too weak to make their own decisions and relying on the gods for answers.
Reese worships his ancestors and the strength of his own willpower and fists. If this were a superhero game he would be a Green Lantern. Besides there are twelve gods and Bahamut destroyed the world regardless, so why follow weaklings (In his eyes)
Myal believes in the existence of the Twelves, but is too self-conscious to consider that they would actually bother with her. Thus, she refrains altogether from involving herself with any of them. This is actually a trait of her she dislike and the looks at those of great faith with envy.