I am finished with the anime and so I was reading through this to know the story after that finale story arc. I'm still undecided with the story. Its like a mesh of Titanomachy and Bleach and it is predictable. Its not the worst or violent graphic I've seen in a Shonen manga but it is readable. It is fast-paced for a manga series but what made the series sort of caught my attention to go through my largely Otaku hiatus was the interesting GRR-Martin psychopathic tendency to kill almost everyone. There's a reason why there was so many characters in the series that I stop memorizing who is who. 
 And who the hell think this was a dystopia? Just because humanity is on verge of extinction? That would make even Ultraman series or Gundam series as dystopia.