Anime usually bases itself on the original Manga, most of which is quite lengthy. Every show only retains an audiences attention span for a certain amount of time, however, and animating an entire manga series panel for panel can take a very, very, very long time.

Depending on whether or not the show catches on, they cut certain parts of the manga out. Usually a lot.

Sometimes they don't expect the show to catch on at all, but still feel the need to waste our time. So they take the manga, cut it all down to one or two seasons, leave out incredibly important plot points, insert filler characters while removing canon ones, and wrap everything up in an awkward and embarrassing fashion that makes everybody ashamed they ever saw it.


However, that doesn't mean they don't milk successful things in Japan. For example, Naruto and One Piece.

A lot of this is very accurate - often times there's issues with time slots due to a show getting pulled because of rating or some other issue - so they fluff up some other show and sell it as comedy or slice or life - it's a sure win in the anime world as the communities eat these shows up. Cuter the better.

But most of the time with shows that have no ending it's because of lack of support for the anime itself - the manga can still have a healthy community and continue on with the story, but the anime may not and may end because of it. An example of this are shows like Spice and Wolf (may change soon), High School DxD, Dears, Dazzle, Dragon Crisis!, and Earl and Fairy.

But then there's unforeseeable circumstances that have broken our hearts, such as the death of creator. A good example of this is Kaze No Stigma.

But then there's the most annoying reason: Anime often tend to draw away from the manga story and go off on it's own plot line. Most of the time - this just ruins the show, leading to people dropping it in disgust. Example of this: Claymore and Rosario Vampire.

And last but not least: Sometimes the anime comes out too early too quickly - catching up to the manga it's pulling it's story from. This leads to an eventual 'stall' that has lead to the creation of 'filler' episodes for popular series - and simple death for not popular ones. Example of this: Naruto, Bleach, One Piece, and D.Grayman. Although Naruto is likely to eventually get an ending, honestly. The other shows? Nope.

I enjoyed Rosario 'enough' to get through it. You can tell they're never going to hook up - just endless fluff. But the manga tells the story a totally different way, and it's much better. Don't ever touch the manga if you want to get through the anime.

wat they don't milk the **** outta shows

WAT.

Look at the big channels, ABC, FOX, etc. They cancel even the good stuff after a season or two.

Cartoon Network and Disney have been doing the same as well. Young Justice(which was pretty mature for a Saturday Morning Cartoon, sorta-90's Spider-Man in tone), Green Lantern, Beware the Batman, Spectacular Spiderman, Earth's Mightiest Heroes, etc. I only watch Adult Swim with the exception of Agents of Shield, the Blacklist, and a few other shows. Rick and Morty is boss time for a new show but I digress.

Anime's have a more complex relationship. Tankabon sells along with popularity from magazines like WSJ definitely play a part in keeping animes going. There's also show views and filler and other things that play a part.

You guys answered perfectly :D

Btw manga is pretty awesome heim.. So are LN's. but like Sota said, if you read the story from the source, it's hard to watch it because the anime usually strays from the path.

Why? I do it because people cry and complain when they see mine but why does everyone else do it? Also, **** you Bob, I'm typing on my PS3 so I can't play Egyptian pyramids with you lol. Font limit DX