So I've been hearing about this series, but I have no idea whats it's about. Just the hype for it. Im thinking of getting into it, but if I did should I go manga or anime? I heard the anime is amazing (quality wise), but whats the difference between the two in terms of distance in story? Meaning this a case like Naruto where the manga is LEAGUES ahead of the anime, and the anime has lots of filler? Or is it pretty cut and dry between the two? Also how long is the series?