User blog comment:Seieireppa/God Eater ∑: Avatar of the Aragami, chapter 2/@comment-14812118-20150321231535/@comment-1419424-20150321234009

I was worried about that too, but then I remembered that my main objective here was to finish the story in three chapters since I really don't do well with long form fiction, so character development, while certainly a priority, wasn't exactly my highest one.

Besides, chapter 3 is on its way, and that will explain a good deal about Sigma's background, motivations, and such. I won't try and justify it by saying that it'll make all the stuff he did in this chapter make complete sense, but, well... just you wait :)

Thanks for the input though. I will try and keep that in mind for future stories.