The voice acting was amazing there were scenes where the voice actors really put a lot of emotion into their acting. Which is one of the reasons why I prefer subs over dubs. There were times in the series where I thought I could predict what would happen but my predictions never came true. it seemed as though this series was full of surprises. One right after another. Which made the story stay interesting.
The characters were okay. I saw a lot of character development among the main cast as well as a few side characters. The best part of them main cast's character development is that they developed for humanity sake.
Overall what made this anime great was the surprises and how the characters overcame there fears and did what they thought or had to do for humanity.
