Okay like everyone else I got like several questions (basically pointing out plotholes at this point):
1) how come no one pointed this out and I'm kinda of disappointed no one did, chapter 8, we see our mc at death's door and the last thing we saw was him get consumed by the giants decaption machine,this chapter not only is he out and just healed, but he was running along underneath where the fmc was getting rektd,l.
2) a gattling gun is supposed to year through everyone there, I'd you're going to use a gattling gun don't have the gattling gun do less damage then the 9mm tracker bullet gun.
3) how is this piece of shit first arc boss level ? The power scaling is on dragon ball z level, you've got a guy with nano machine armor and weapons, how is this even anything resemble,a fair fight much less a fight, if the mc Didn't arrive they would've all been dead withing seconds
4) I half agree with the assumption that, they really didn't need a hero, like the piece of shit villian could've of ended the inhumans himself, the reason I don't fully agree with it is because there appears to be a underlining sub plot involving the demo humans being as they may be iskeai'd into their world and the world itself maybe a future world rather than a alt deminision, interesting concept however the Arthur has no sense for power scaling, they're writing skills are also terrible because they've created more plot holes than resolving issues with a reasonable amount of suspension of disbelief.
I like the ecchi series, it's both dark and has a light humor side to it but goddamn does the author feel like the series is about to axe and he needs to wrap up, which is effecting the whole managa terribly. Also I agree that if the mc and fmc don't just straight up snuff this guy out, I'll want to drop this series