I have a feeling that this show is underrated. Many does not give it a chance because of CGI even tho it is only used in some parts that require it. It is a very entertaining and action-packed story which is certainly one of the better action animes. It is a world where humans who get too much hatred and greed might be consumed by the darkness and be turned into a monster who kills for something "El Dorado" which the protectors are trying to find out about. There are so many different stories and moments, and you get to know many characters in a specialway that is not just a flashback of something pointless, but something that makes sense. Its so interesting!

On Crunchyroll every single episode has gotten a 5-star and 4,5/5 on reviews of the anime. Some of the reviews are ofc just about the first episode complaining about the cgi.

I AM JUST SAYING GIVE IT A TRY :P