I know at least part of the reason Saki is so scared is to channel her mood & reactions to the viewer ... but ... she just seems so helpless
I was expecting that she'd grow into something more useful than a medium for Shun's past wisdom. I hope she can overcome her fears and do something useful at the end ..
Inui was surprisingly awesome after his fatalistic talk & that last scene with him was quite gripping. It was also well foreshadowed by the first "giant centipede" attack, where they made you wonder if he was dead or not.