User blog comment:B214/side series/@comment-5916303-20150204121324/@comment-1746153-20150215181436

I know, but it's still not what I meant. I was talking about interesting and more realistic character psychology, not the plot. AgK doesn't dwell much on its characters' inner worlds, and we are meant to accept everything as it is shown. Tatsumi's ability to kill without hesitation was noted by Leone and she saw him as a worthy candidate for NR. And then we are shown that the people they kill are omg so evul! and don't deserve mercy, so what Tatsumi did is totally fine. This way, the story is basically black and white, with no room for doubt or inner conflict.

Wave however is a "good" guy fighting on the "bad" side. While I also think Ran is a more interesting character (I'm biased though) he isn't exactly good MC material for a Shounen manga, while Wave is. Story wise, if Wave were the MC, he would definitely have to switch sides eventually, as he'd have to understand that simply following orders will not do - which would be his development.