- #42
Ye, it's pretty obvious that Oku had other plans regarding the Vampires, but scratched those halfway through. Same goes for the character of Kurono Akira.
But to give a real answer: I don't think the "Humans-are-so-unimportant"-Alien is the "final boss".I think you're right, Akira was really underdeveloped. And yeah, if this Alien is the final boss then I think the ending will be prettty shoddily done. I reckon that Sebastian will be some kind of final boss, considering the seemingly central role he has as an antagonist as of the recent chapters.
Or hey, maybe his mentally-impaired daughter is the 'final boss'. That would be hilariously underwhelming.