This anime in my opinion is one of the best animes in history, it has an incredible animation, incredible story, very good soundtrack and concepts that keep you in the plot, the only problem I see is that they add unnecessary things, in other words: Stuffing. This series would be perfect if writers didn't have the need to do things that didn't add emotion to the plot or would be easily forgotten, if the filling chapters weren't in this series was very good. Still side of all that this series is amazing, especially in the ninja war.