The story finally fell into place once I gave up forcing Kamina into being the main character. It was getting to be a problem because I found myself all excited planning Simon's character arc, yet totally neglecting Kamina's, and I just didn't have enough ideas to justify putting that much focus on him. But now that I've brought Kamina down to having a more minor role, I've been able to come up with a way to flesh him out in a way that even I find exciting. So that makes me happy.
The only problem now is that I don't know what to do with Yoko. I have a few scenes in mind for her, but other than that, at this rate she's just going to end up being Kamina's back-up/girlfriend/confidant the whole story, which makes me feel kinda bad. I mean, I'm even doing more with Viral and Rossiu than her. I can't seem to come up with a story for her without Kamina being dead. Would it be forgiveable since I'm using her so much in Sound of Pulling Heaven Down...? :(
Anyway, I won't be starting this fic until after I've finished SoPHD and watched Lagann-hen, so I still have a lot of time to think over it.
...I also just had another idea for a fic based on the Parallel Works 1 AU. I was already planning a fic using that AU that's mostly fluff and adventure, but this new idea involves Princess Nia turning into a witch a la Messenger Nia. I kinda hate myself for that, since this is supposed to be the happily-ever-after AU. :( I'm not sure whether I'm going to actually write it; it's tempting, but...it might hurt too.