@osqmu
This series is like a chocalate bar, you take a bite and it melts in your mouth. does it taste good? Yeah of course its a chocalate bar its tasty and you enjoy it.
However theres no substance, nothing to grab onto to make you go "WOW this is a gourmet meal right here"
Are the vengeance scenes enjoyable? Yeah, they are
Are the characters that we see getting avenged or the targets of said vengeance deep characters? No, most of the characters are boiled down to "This guy is evil, see he did the evil thing." and "This guy was good, see he did the good thing but now he's dead"
If this series had atleast like 1 chapter atleast trying to get me attached to any of the characters like the sister or the soldiers, or a chapter making me hate the enemies then it would have been a solid 8/10.
Again its like a candy bar. It's a simple series that seeks to give you simple satisfaction, and it does that well.
TL;DR
1 Star was substracted due to lack of attachment to any characters(which the series doesn't try to fix)
1 Star was substracted due to lack of attempts to make me actually dislike the enemies beyond "hey look this person kills people"
1 Star was substracted due to the overall lack of character in any of the characters, main boi is the only one with any semblance of personality.