This is one of the most underrated manga i ever read. The characters are really well develop,you are gonna love some of the characters good or evil. Most people see this story has an shonen battle manga but yet it is not like that at some points at the story, some part of the story will use challenges for the main or secondary characters in were the need to use the intellectual to beat the enemy. Every arc has is own unique style with different objectives that will not make you bored of the story. This is a great manga one may said that is a legendary one, but it has is down falls, some of parts of the story made drag for many chapters leaving a long speeches and some cases with no drawing, this may turn off the casual reader if they are looking for a fast pace manga, yet the author rewards the reader with some awesome moments at the end of every arc. This story has some moments with gore parts so be ware of those parts if you are not in that kind of stuff. I highly recommend for the casual reader that go watch the anime 2011 version first, by far it the best adaptation of the manga, but if your are a hardcore manga reader like myself and had not read this manga i highly recommenced to read this manga because it one of the greatest you ever read. I warn you this story has not ended and may never be finish so beware if you don't like that kind of manga.