I'm looking for the best iPhone RPG in terms of game play and story, but is not too difficult or challenging. I want something that's immersive, but will be playing it as a time killer or casually. Price isn't a huge factor (don't mind paying for quality), but want something that's rewarding in terms of game play, story, immersive, and decent graphics would be nice.

I've done a search on here for RPGs and have read through the threads and have some games written down, but figured I would ask since I might be looking for something different that was previously asked (i.e. Best RPG may not be for me, maybe due to difficulty).

Thanks in advance.