Well that was really sweet! I wondered how and why it was so important to mention that Noriko's father was a novelist - and it all circled back around in the end. The whole thing was Noriko's diary, so the unique aspect of her internal monologue summarizing events as they traveled made perfect sense.
The ending was a little corny and simplistic, but it was what the whole story had been building to, in a way. A little disappointed Izark didn't have a "good" sky demon transformation, but I guess that would've been counter to the whole "evil transforms you into a monster" theme.
I'm glad for the epilogue! Also a little cheesy, but the open ended foreshadowing that one day Noriko and Izark might/will be able to visit Japan together is extra sweet.
Kanata Kara