%% Image selected per Image Pickin' thread: http://tvtropes.org/pmwiki/posts.php?discussion=1384537070021906200
%% Please do not replace or remove without starting a new thread.
%%
[[quoteright:350:[[Manga/ChronoCrusade http://static.tvtropes.org/pmwiki/pub/images/chrono_crusade_overtaken_1252.jpg]]]]
[[caption-width-right:350:"How'd you get here so fast, Anime-san?"]]

-> '''Mokuba:''' We appear to be locked on course with a giant ocean fortress directly beneath us!
-> '''Yugi:''' That's weird. I don't remember any of this happening in the manga.
-->--'''''WebVideo/YuGiOhTheAbridgedSeries'''''

Many {{anime}} are based on a {{manga}}, or Japanese [[ComicBookTropes comics]]. While simply making the anime into a completely AlternateContinuity is common (especially if the manga has [[NoEnding no ending]]), more often the anime at least tries to follow the major plot points of the original manga.

However, if a series is especially popular (and/or marketable), its anime version will begin before the manga even ends. Because of medium conventions, it takes longer for events to unfold in manga than it does in anime, the average conversion being roughly 2 manga chapters to make 1 anime episode, and this often means that an anime will simply run out of source material. While some manga series are published weekly (e.g., ''Shonen Magazine''/''Sunday''/''Jump'', etc), others are published on a monthly schedule (e.g., ''Nakayoshi'', ''Shonen Ace''). However, most anime are aired weekly, which just makes it worse, especially for manga that have just started. The producers of the anime are then in a fix. They can't just wait for the creator to produce more material because they have a broadcast schedule to meet. Japanese shows are almost always broadcast solely as first-run episodes with no reruns. No new episodes is akin to being cancelled. This is something that is frequently [[LostInTranslation lost in translation]] outside of Japan, since unlike Western shows, they don't schedule production in the form of "seasons" with production breaks set into the schedule. They just keep going and going and going until they end/get cancelled, or stop at a predesignated point. This is also why lots of anime are only 12/13 or 24/26 episodes long, because that's all they were scheduled for, regardless of popularity.

Unless they work in very close tandem with the writer of the original manga – which is very rare since those writers are usually really busy with the manga as it is – the people in charge of the anime will have to start making things up on their own, and create a unique plotline from the point they ran out of manga to base things on.

Unfortunately, unpopular or unwelcome [[FillerArc filler arcs]] or filler episodes may often be [[{{MisBlamed}} misblamed]] as being the fault of the original creators, when in reality the creators almost always have nothing to do with the filler plot. Some fillers that were better received by fans are often cited as being opportunities to develop lesser characters (this often helps with anime that have a cast size near [[LoadsAndLoadsOfCharacters the size of the production staff]]).

Another option could easily be to just pad the episodes out and slow the story down. This was common in the ''Manga/DragonBall'' series, which unfortunately [[LostInTranslation caused many people to believe the manga was exactly the same]] or that [[MisBlamed Akira Toriyama's writing was at fault, when in reality the pace of the anime was out of his hands]].

Most writers just choose to do a [[GeckoEnding gecko ending]] instead.

See also WackyWaysideTribe.

----
!!Manga-to-Anime Examples:

* ''Manga/AiYoriAoshi''. While ''Ai Yori Aoshi'' and ''Ai Yori Aoshi Enishi'' follow the manga for the most part pretty faithfully, its ending [[LeftHanging accomplishes nothing story wise]].
* The popularity of ''BlackButler'' caused it to be adapted way too soon and the anime wound up going in a totally different direction than the manga. Only 9 of the 24 episodes from the first two seasons were adapted directly from the manga; however, a new season in 2014 will be based on the manga once again.
* ''Manga/{{Bleach}}'' created the Bount, Shusuke Amagai, Zanpakuto Tales, Beast Swords, and Division 13 Incursion arcs due to TiteKubo's legendarily slow pacing. Sometimes the filler arcs slid neatly in between canon arcs but at other times, they occurred in the middle of canon arcs, resulting in comedy segments where the canon characters behaved like actors taking set breaks. Eventually Toei decided to cut their losses and end the anime altogether while the final arc ran in the manga. Whether if it'll get an adaptation or not remains to be seen.
* This appears to be happening to ''Manga/BlueExorcist''. It followed the manga pretty well up until the very first filler episode, after which they both went in two entirely different directions. Some fans are not pleased.
* The ''{{Bokurano}}'' anime was completed before the manga was, resulting in the last half of the anime having absolutely no connection or resemblance to the equivalent in the manga, with the exception of one plot twist that the manga author might have decided to use after the anime came up with it.
* In ''Manga/ChronoCrusade'', the anime took a radically different direction from the manga in the last third of the series (they ended around the same time). Whether or not this is necessarily a bad thing is up to you.
** To simplify it, the anime plays up the religious symbolism ''way'' more than the manga does, and the natures of certain characters are different. Even the ForegoneConclusion works out differently.
* ''Manga/DailyLivesOfHighSchoolBoys'', despite a SliceOfLife comedy, got this treatment due to two factors: (1) the manga's SketchComedy format means a whole volume of manga can only produce 3 episodes of anime without padding, and (2) {{Sunrise}} did not pad. The anime practically ran out of original material at the last episode; in which they asked the mangaka to draw two skits for the anime (''High School Boys and Assertiveness'' and ''High School Boys and Getting Hit On'') and made two original skits (''High School Boys and ...'' and the faux ''High School Girls are Funky--TheMovie'' trailer). Of course, being a ongoing SliceOfLife manga without much of a plot, the anime simply ended the season by using BookEnds.
* ''Manga/DragonBall'' has three notable points that were to let the manga material get ahead for a few weeks: Goku's travels across the Earth following the defeat of the Red Ribbon Army and wishing Bora back to life, Gohan, Piccolo and Krillin's encounter with Garlic Jr. and Goku competing in the Other World Tournament.
** The filler after the Red Ribbon Saga is especially notable in that it was actually properly set up by the manga. In the last chapter of the Red Ribbon Saga, Master Roshi tells Goku to continue training by travelling around the world and that while, travelling around the world, Goku will have many adventures and a lot of fun. In the next chapter of the manga, there's a time skip and Goku has already completed his journey around the world, the adventures mentioned by Master Roshi are never shown in the manga. This whole sequence is basically the manga giving the anime an excuse to do a series of filler episodes.
** This actually happened AGAIN with the Cell Games, where Cell, after attaining his Perfect form and trouncing Vegeta and Trunks, decides instead of killing them there to leave and tell them to train for 10 days so they can participate in his tournament so he can fight them again. This gave the anime an excuse to add some filler before the end of that saga.
* ''Anime/ExcelSaga'' made a deliberate attempt to avoid this by going for a completely different storyline (only a handful of episodes have ''any'' connection to the original manga at all). To wit, the original manga gets considerably darker – and is much more of a satire than a parody – a few volumes after the adapted-to-anime material ends.
* The ''{{Eyeshield 21}}'' anime has ''a lot'' more wacky hijinks between games because of this.
* ''Manga/FairyTail'' got hit with this, too. After the timeskip, the anime was getting a little too close for comfort with the manga's storyline. So, the studio decided to insert a filler arc before the Grand Magic Games arc. It is widely acknowledged that Mashima himself requested the studio to do it and even helped them plan out the arc's story. But however, it wasn't even enough in the end because it still ended up getting too close to the manga. So, Mashima decided to insert a title card in manga chapter 297 "To Be Continued" for the anime to use as a certain point to go on hiatus. Luckily, the anime returned in the spring of 2014 to resume the story.
* The first part of the ''FistOfTheNorthStar'' TV series had many drastic changes to the order of events as a way of preventing it from getting ahead of the original manga. Kenshiro's battle with [[TokenMotivationalNemesis Shin]] was pushed back to the end of the first part, numerous [[VillainOfTheWeek one-shot villains]] were introduced, and several other villains from the manga, namely the Godland Colonel and Jackal, were shown to be working for Shin. The subsequent parts also featured {{filler}}, but generally kept the main storyline going in the same order.
* The [[Anime/FullMetalAlchemist 2003 anime adaptation]] of ''Manga/FullmetalAlchemist'' went into an AlternateContinuity from its very early episodes, although the changes were fairly subtle in the beginning. This is because the creators [[PragmaticAdaptation knew in advance that it would overtake the manga]], as did the manga's creator, who explicitly asked them to take this route. Averted with the second series, ''[[Manga/FullmetalAlchemist Fullmetal Alchemist: Brotherhood]]'' which revealed it was sticking with the manga ending - the final episode was aired about two weeks after the final manga chapter was released.
* ''Manga/{{Gantz}}'' is an odd example. The manga and anime were created at about the same time. The animators, knowing they would eventually get ahead of the manga, decided from the beginning that it would only follow the manga through a few arcs. The anime [[GeckoEnding ended with an arc that was nowhere in the manga]], but had been planned since the first episode of the anime.
* The anime version of ''GreatTeacherOnizuka'' followed the manga for the most part right up the trip to Okinawa.
* Averted in ''{{Guyver}}'', which has had three animated adaptations and none of them have gone past the first appearance of Guyver Gigantic. This happened in the early 90s... and the manga is still ongoing. Even the most recent anime, produced in 2005, just barely got Guyver Gigantic in. Many ''Guyver'' fans would love an anime that runs long enough to overtake the massive manga lead.
* ''Manga/DotHackLegendOfTheTwilight'' also diverged from its manga once it reached the "Haunted House." This included, oh, removing half to all of the ''plot''. To this day, the ''Twilight'' anime is the only installment, besides the gag OAV ''.hack//GIFT'', which does not count officially in the series canon.
* ''{{Hellsing}}'''s first anime went a completely different direction with characterization in its "Incognito {{arc}}", due to catching up to Kohta Hirano's manga ''extremely'' early on (as in, before the BigBad was even introduced), made worse by the fact that 1)Hellsing was a monthly series, and 2)Hirano is famously lazy, regularly turning in chapters only 10 pages long in a magazine where the average is 25-30. Hirano was extremely unhappy with the anime, and further adaptation of the comic was postponed for years. An {{OVA}} series ''much'' more in line with the original was made.
* Despite this happening, ''HunterXHunter'' has at most four episodes that could be considered filler in it, and they were all fairly early on. Instead of making filler episodes, the anime simply stopped making episodes until the manga made significant progress, which is why it has three [=OVA=] seasons and stops at the end of the Greed Island arc. Whether or not more episodes will be created once the Chimera Ant arc finally ends has yet to be revealed.
** The series has now been rebooted. And despite a twelve years gap, it's about to face the same problem.
* ''InazumaEleven'' is a rare example of the anime staff avoiding filler by working closely in tandem with the creators of the source material (in this case a video game series instead of a manga series). Whenever this happens, the anime simply starts on the plot of the next game before the game itself is released. The game series itself simply has its major plot points planned out well in advance; the 4th game, ''Inazuma Eleven GO'', is currently scheduled for a winter 2011 release, but trailers had already surfaced a whole year in advance in December 2010. As a result, the major plot points are generally consistent between the game and anime, although plenty of details and smaller points differ.
* When the ''Manga/{{Inuyasha}}'' anime series OvertookTheManga, Sunrise opted to simply end it, resulting in a finale that only gets about 7/10 the way through the story. It was [[SequelSeries continued]] in InuyashaTheFinalAct, which covered the remaining volumes of the manga, which ended in 2008.
* This happened to ''{{Karin}}'', resulting in a very anti-climactic yet funny ending for the anime and an elaborate TearJerker ending for the manga.
* ''KashimashiGirlMeetsGirl'' ignores a new plotline added in the manga and goes for a GeckoEnding – probably for the better, although opinions differ.
* The anime of ''Manga/{{Kekkaishi}}'' made its own story for a short while, then abruptly cut it short with no resolution whatsoever.
* Because the anime version of ''Manga/KeroroGunsou'' (a.k.a ''Sergeant Frog'') frequently runs ahead of the manga (particularly in more recent years) a number of episodes and plots are present in the former that are not in the latter, such Karara's repeated appearances to marry one of the members of the platoon and the timer counting down to the invasion in season 3.
* The anime version of ''KonjikiNoGashBell'' (''Zatch Bell'' in the West) ran at the same time as the manga version it was based on. Unfortunately, Makoto Raiku, the author of the manga, broke his hand, forcing the manga version to go on hiatus while the author's hand healed enough to allow him to draw again. The anime overtook the manga as a result, so the anime diverged from the manga for its final episodes. Some aspects of the anime made it into the manga once Raiku resumed drawing, the most notable being [[spoiler: Zeon's ultimate spell and the location of the final battle between Sherry and Gash]].
* ''MermaidMelodyPichiPichiPitch'' also had filler while waiting for the manga that eventually crowded out key plot points from said manga. Meaning? Anything involving Coco.
* ''Manga/{{Naruto}}'' is perhaps the most infamous example since ''Dragon Ball''. The show ended up with ''two entire seasons composed solely of episodic filler and nothing else''. Although some of the filler arcs were moderately popular for providing screen time to [[EnsembleDarkhorse fan favorite secondary characters]] as well as general FanService this eventually led to a severe drop in ratings, resulting in the first arc after the TimeSkip being essentially a relaunch with the new title of ''Naruto Shippuden''.
** ''Shippuden'' attempted to pace itself so the manga could maintain a lead, even at one point going so far as to adapt only one manga chapter per episode. Despite this the lead slowly closed. Multiple filler stories have been introduced but do not have the same advantage as taking place during a TimeSkip, instead being shoehorned into the plot as either flashbacks or [[WackyWaysideTribe Wacky Wayside Ninja]].
* The anime team is trying desperately to avert this with ''Manga/OnePiece'', not expecting the series to [[LongRunner have gone on for this long]]. Saving filler stories strictly for promotion of other things (such as [[TheMovie movies]]) and keeping them short, the anime instead is taking the one-chapter-one-episode approach, sometimes resorting to stretching a chapter into two episodes if they get too close, keeping roughly 10 to 12 months behind. Eiichiro Oda, the author of the manga, seems to have caught wind of this and has greatly increased the pace of the manga, creating many gaps in every chapter for the anime people to fill in.
* ''OuranHighSchoolHostClub'' pretty much averted this. The anime came out in 2006 and ran for only one season, while the manga, updated monthly, is still currently ongoing with over 70 chapters. Despite this, the anime followed the manga nicely with the exception of a few minor alterations that more or less didn't really affect anything. Only the very last two episodes or so drift from the manga. The anime ending was enough to give some closure, but still relatively open, leaving all pairings technically possible for fangirls to squee over.
** ''Most'' shoujo stories published by Hakusensha seem to only receive roughly 26 episodes of anime adaptation (either a single series or two [[TwelveEpisodeAnime half-size seasons]]) which ends way before its manga source is anywhere near a proper conclusion. The production studios therefore don't have to wait for the manga at all provided it already has enough material for a one-season anime, and those who like the series can start reading the manga for continuation and/or more details. Whether this tactic actually works tends to vary between the series, though.
* The anime ''PeacemakerKurogane'' actually ends at the prequel for the actual manga "Peacemaker Kurogane", and only follows the events of the manga "Shinsengumi Imon Peacemaker". Sound confusing? It is.
* While most of the ''Anime/{{Pokemon}}'' seasons are based directly off of one of the handheld video games, having Ash and co. visit the region of the currently-released installment and compete in the regional League, it had to go off the paved path twice, simply because they got to the end of "pavement":
** The second season, named "The Orange Islands", took place on a completely original set of islands. This was due to ''VideoGame/PokemonGoldAndSilver'' not yet being released at the time; while they could've had the characters potter about the Kanto region for another 35 episodes, moving the story to a more original setting allowed the producers to start [[MerchandiseDriven introducing more of the new Johto Pokιmon]] ahead of Gold and Silver's release. This actually allowed Finnish MTV channel to [[NoExportForYou remove the Orange Island saga from their TV]].
** The last portion of the ''[[Videogame/PokemonBlackAndWhite Best Wishes]]'' saga (the second half of Season 16 in the Dub) contains various {{Filler}} Episodes that did not fit within any of the saga's plotlines, plus a few {{Early Bird Cameo}}s for Videogame/PokemonXAndY as per usual.
* ''Manga/RanmaOneHalf'' overtook its manga source several times, and made a large number of episodes from scratch each time it happened. Several episodes also were condensed arcs from the manga as well, but that may often be expected.\\
An interesting phenomenon was when an event in the anime and the manga happened at different seasons. When Ranma fights Cologne, it's a summer BeachEpisode in the manga, whereas it's a winter ski trip episode in the anime. As a result, the two are quite different.
* This ironically ''[[AvertedTrope did not happen]]'' to ''Manga/RosarioToVampire''; the first season of the anime stopped about halfway through the first serialization of the manga, which itself was just getting into its second, but not only did they rush to release the second season anime within a few months of the first, but rather than picking up where they left off, they skipped the rest of the first serialization and went directly into the second, which had barely been around for a year by then, though they did touch on some of the plotpoints from the first serialization. The result is [[TheyChangedItNowItSucks not well-liked]].
* The ''RurouniKenshin'' anime's last three arcs — the Christian/Shimabara Arc, the Black Knights Arc, and the Feng Shui Arc — were anime-only, created while waiting for the author to finish the manga. Although the Christian Arc – as well as the episodic filler and the four episodes adapted from the light novel – were reasonably well-received, the poor quality of the last two arcs led to the anime's cancellation and the final manga arc (the Enishi/Jinchuu Arc) was never fully animated.
** Nearly half of the first-season episodes (almost everything after the end of the Oniwaban story) were also filler, largely consisting of stand-alone episodes or two or three episode storylines that were basically watered-down versions of other plots from the manga (the series and the movie have three or four low-rent versions of the series' ultimate BigBad Shishio – masterminds with a vision of the "good old days" who gather together a bunch of unemployed swordsmen to embark on national conquest).
* ''Anime/SailorMoon'' invented mini-arcs in case new seasons weren't picked up or when they had to SnapBack after Overtaking the Manga, such as the mindwipe in the first season.
** This is the reason the anime-only Doom Tree FillerArc at the beginning of ''Anime/SailorMoon R'' exists. Creator/NaokoTakeuchi had planned for the manga to end after Queen Beryl was defeated, but eventually agreed to continue it. They had to wait for Takeuchi to write enough of the next arc though, so they created the Doom Tree arc to fill time.
** This is particularly noticeable in [=SuperS=], which shares almost nothing in common with its manga counterpart and is noted for having had a significant ratings drop in Japan, a well as being most of the fandom's least favorite series. In the final season, they broke their rule of one BigBad per season for a mini-arc that brought back the rest of the cast and properly ended the previous series by recycling the BigBad of [=SuperS=]. After that arc, the proper BigBad, Galaxia, showed up and the real plotline started.
** The ''Sailor Moon'' anime started in March of 1992. The [[Manga/SailorMoon manga]]? ''February'' - the manga only started because Creator/ToeiAnimation wanted to create an anime from it. Furthermore, while the anime was weekly, the manga was monthly. In other words, this trope was going to happen from the very beginning. And then there's the fact that the manga included plots like say...three of the Sailors being captured and ''disappearing from the story'' until their rescue several chapters later. The anime, running concurrently with and at a faster rate than the manga, simply couldn't adapt these plots at all. (In the case of the Sailors' abduction, the plot was reduced to a two-part episode [[StatusQuoIsGod where they were all freed at the end]]). No wonder the [[Anime/SailorMoonCrystal 2014 reboot]] is said to be [[TruerToTheText closer to the manga]] - they can actually animate these plots now that the manga is finished.
* ''SaintSeiya'' created the whole Asgard arc after the Sanctuary Chapter which surprisingly enough became one of the fans favorite arcs. On the other hand, they created several episodes in the Sanctuary Chapter which led to some confusions notably with the introduction of the Crystal Saint as Hyoga's mentor when it was later revealed in the manga that Hyoga's mentor was in fact the Aquarius Saint. It was handwaved by making The Aquarius Saint the mentor of the Crystal Saint who was still the mentor of Hyoga the Cygnus Saint, thus establishing some kind of "coherent" hierarchy.
* ''{{Saiyuki}}'' has had a number of these. The second arc of Gensoumaden was an anime-only arc, although Homura (the arc's BigBad) ''was'' designed by author Kazuya Minekura and took existing elements from the {{prequel}} series Gaiden, also on-going. Then, the current plot of the sequel Reload, which is on-going, was halted while the author was sick. In order to keep production going, the anime took the existing plot and characters and went in a completely different direction with them. A very, very different direction. Thus, important continuing plot elements from the manga were completely left out and the anime finished without them- with no word on whether the manga's version of the arc will be animated at all. This also led to a huge shuffle-around of manga to anime plots, with the second manga plot taking place in the first half of Reload anime, and the second half of Reload taking place in another sequel anime, Reload Gunlock.
* In ''Manga/{{Saki}}'', the manga ended the regional tournament just a few days before it ended in the anime.
* ShugoChara used the whole Lulu arc to catch the manga's pace, but at the end they ignored the manga's conclusion and added a whole filler season (''Dokki Dokki!''), ignored by most of the fandom.
* The ''{{Simoun}}'' manga debuted in the January, 2006 issue of ''[[SchoolgirlLesbians Yuri]] Hime'' magazine, at which time the anime version had already started production. The two tell different stories, albeit with the same background.
* The ''ComicBook/SonicX'' comic has done the same thing, with the Sonic characters being shown still living on earth in the comic long after the anime had sent them home.
* ''Manga/SoulEater'' is almost exactly the same as the manga with only a few minor alterations (and more Excalibur for some reason) up until episode 37 [[spoiler:at which point the new ending switches around which characters live and die, changes the significance of several characters, and involves a giant robot fight in a series which had never had anything remotely like that happen before. In the final episode Maka is able to fight off Asura, one of the most powerful beings in existence, by somehow becoming a weapon for a few minutes (which, oddly enough, doesn't have any real effect on the fight) and finally by punching him really hard in the face, which causes him to crack apart as if he were made of glass and explode because she "filled her fist with courage". It's worth noting that she doesn't even use Soul, her partner, to achieve this, which is strange since teamwork seemed to be a pretty major theme in the show up until the final episode.]] Some of these changes, though, can actually be considered to be quite awesome, so it's really up to the viewer to decide. It was inevitable as the series runs in a monthly magazine, and anime are made for weekly showings. It was going to catch up pretty quickly regardless.
* The ''Manga/{{Trigun}}'' anime overtook the manga by a fair margin, though how it did so is a rather unique situation. In 1997, Yasuhiro Nightow had to deal with the abrupt end of the manga because the {{Shonen}} magazine he was being published in folded. By the time he restarted it as ''Trigun Maximum'' in the {{Seinen}} magazine ''Young King Ours'', Creator/{{Madhouse}} had already begun production on the anime. As a result, the anime quickly caught up and finished long before the manga did. In fact, ''Maximum'' continued for nearly 9 years after the anime ended, finally finishing in April 2007. From Volumes 2-3 of [=TriMax=], including the equivalents of episodes 20-21, the manga takes new directions with plot and characters, while retaining parallels in the plot — sometimes revealed in the manga years later — that Nightow had probably intended from the beginning.
* With ''TsubasaReservoirChronicle'', apparently Creator/{{CLAMP}} is so upset that production company Bee Train had to resort to making stuff up because Creator/{{CLAMP}} took too long and too slow to tell their story (a common occurrence). When the manga reached the [[DarkerAndEdgier Acid Tokyo arc]], the damage is already done and CLAMP have given the rights to ProductionIG to continue the anime in [=OVA=] form. The fillers did break several rules that CLAMP stories strictly abide by. Most egregiously, one episode had the heroes using a wish to restore the dead to life. An immutable, unbreakable law of nature in the Tsubasa-verse is that the dead '''never''' come back to life, no matter what happens. Hell, it ends up being one of the ''central themes of the entire story''.
* ''VenusVersusVirus'''s anime went in a completely different direction from the manga from the ''first episode''. It also had a GeckoEnding.
* ''ViolinistOfHameln'' found themselves so far ahead of the manga that they needed to come up with their own explanations for many of the ChekhovsGun found in the series, as well as creating a GeckoEnding for it all.
* The AnimatedAdaptation of CLAMP's ''{{X 1999}}'' have obviously counted into this because the manga was actually cancelled (Or rather, it has been listed as "on Hiatus" for a ''long'' while) due to Monthly Asuka growing concerned about the manga's rather violent storyline and imagery present in the storyline, and the authors actually didn't want to be censored so they opted for hiatus. (Of course, the manga was actually pulled a couple times already for similar reasons.
* ''Franchise/YuGiOh'' loves to do this; the Virtual World (which occurred ''right in the middle'' of another in-manga arc), Doma / Waking the Dragons and the KC Grand Prix were a result of this. If nothing else, the Virtual World arc gave us more backstory on the Kaiba brothers.
* ''YumeiroPatissiere'''s anime will continue in October with a new season called ''Yumeiro Patissiere Professional'', which will take place several years later with Ichigo now in high school. Since the manga, which is serialized monthly, is still in the middle of the first story, it's safe to say everything in the new anime will be new material.
* ''Manga/ACertainScientificRailgun'' has many filler arcs because of its manga's slow pace. Fortunately, the author Creator/KazumaKamachi had some say in these arcs, and they were mostly used to tie up the previous arcs' loose ends that the manga missed.
* The anime version of ''Manga/CodeBreaker'' is a different case. With the manga released back in 2003, the anime version, which was released on 2012, only has ''12 episodes'' and only focused on the Hitomi Arc. What's even worse is that anime brought in three characters (Yuuki, Rui and Yukihina) who aren't supposed to appear after the Hitomi Arc.
* The HauntedJunction anime had to replace the more linear and consistent plot from the manga with a comedic OncePerEpisode deal ''and'' cut several characters out (like the Bleeding Beethoven and [[spoiler: Shingo]] to cover up for how the manga was nowhere near finished... and it wouldn't be over until ''years'' after the anime series was done for.
* TheNineties' ''Manga/{{Berserk}}'' anime adaptation was planned to cover only one plot arc of the manga, roughly 1/3 of the story by chapter. Rather than a GeckoEnding, it stops at a large CliffHanger. It's been described as "the world's most elaborate ad for the manga" for the way it drives viewers desperate for resolution back to the original. TheNewTens' film trilogy adaptation re-adapts that same plot arc, ending only very slightly further on in the plot (roughly one chapter's worth). The creators of the trilogy have expressed the desire to continue adapting the manga story up through the ([[LongRunner currently unwritten]]) ending, but details of what form that will take (more films, a new TV series, [=OVAs=] a la ''Ultimate Manga/{{Hellsing}}'') are not forthcoming. Due to Miura's notorious {{Schedule Slip}}page, if they were to continue releasing films at the same pace as the Golden Age trilogy, they could easily find themselves Overtaking the Manga yet again.

!!Other Examples:

[[foldercontrol]]

[[folder: Film ]]

* MichaelCrichton followed ''Franchise/JurassicPark'' with ''[[TheLostWorld1995 The Lost World]]'', but the lack of a third book lead ''Film/JurassicParkIII'' to be created from whole cloth.
* ''Literature/TheNeverendingStory'' had its first half becoming [[Film/TheNeverendingStory the eponymous movie]], with the other half being the sequel. The third movie was an original plot [[DenserAndWackier with barely any resemblance to its beginnings]].

[[/folder]]

[[folder: Literature ]]

* Some of the early StarWarsExpandedUniverse material that was published between the movies of the original trilogy, notably ''SplinterOfTheMindsEye''. It was written as a sequel to the first movie, but published when it was unknown if ''TheEmpireStrikesBack'' was ever going to be made. The MarvelStarWars comic book series fits this trope to a tee despite ironically being a comic book adaptation of a screen franchise. First it adapts the first movie, then it has a bunch of original stories, then it adapts the second movie, followed by more original stories, then the third movie, and then it OvertookTheSeries.
* S.D. Perry wrote a follow-up to her ''VideoGame/ResidentEvil2'' novelization titled ''Resident Evil: Underworld'', in which Sherry Birkin is left under the care of her heretofore unseen aunt, while Leon and Claire go on a new adventure with Rebecca Chambers and the surviving members of the Exeter branch of S.T.A.R.S. However, this book proved to be hard to reconcile when ''VideoGame/ResidentEvil3Nemesis'' came out, as it revealed the fates of various characters after ''2'', which differed to what Perry came up with in ''Underworld''. Perry had to explain away all the {{continuity snarl}}s in her ''Nemesis'' and ''Code: Veronica'' novelizations.

[[/folder]]

[[folder: Live Action TV ]]

* ''Series/AllCreaturesGreatAndSmall'': the show eventually ran out of JamesHerriot novels to adapt and started creating the scripts out of whole cloth.
* The Showtime series ''Series/{{Dexter}}'' had its first season based on the first ''Dexter'' book, ''Darkly Dreaming Dexter''. The second season showed an original storyline as the second book, ''Dearly Devoted Dexter'', was considered inappropriately dark for the show. There were no more books by the time the third season was greenlit, and since then the novels and TV series have gone their separate ways.
* ''Series/TheWorstWitch'' ran out of material to adapt after the fourth book. The actresses were all getting too old by this point, so the show was ReTooled into ''Weirdsister College'', replacing half the cast in the process (although Felicity Jones returned as Ethel Hallow, after two seasons of the role being played by Katy Allen). After that, a new series was made out of whole cloth.
* As of the show's fourth season in 2014, ''Series/GameOfThrones'' is coming dangerously close to overtaking the ''Series/ASongOfIceAndFire'' novels it is based on. While there are still two hefty novels left before the show runs out of material, both of those books occur at the same time and several characters have already started to dip into the storylines from those novels. Creator/GeorgeRRMartin has given the show's writers a detailed explanation of events in the final two novels, as the writers and producers have made it clear they will not and cannot stop and wait for Martin to catch up. The season 4 episode "[[Recap/GameOfThronesS4E4Oathkeeper Oathkeeper]]" is the first to feature a major revelation before the novels: the final scene [[spoiler:reveals the Others/White Walkers have a society and hierarchy, that they create new Others/White Walkers by transforming human babies, and that they are led by the Night's King, an evil figure from Westeros mythology who was not previously confirmed to actually exist]].

[[/folder]]

[[folder: Video Games ]]

* The Creator/TimBurton ''Film/{{Batman}}'' movie was adapted to an [[VideoGame/BatmanSunsoft NES game]] by Creator/{{Sunsoft}}, who took great liberties with the plot of the movie but still managed to churn out a pretty good sidescroller. However, Sunsoft couldn't wait for the next movie to come out before making a sequel to the NES game, and created ''Batman: Return of the Joker'' as a standalone sequel based on the comic.
* A similar example occurs with the SNES adaptation of ''VideoGame/JurassicPark''. Ocean couldn't wait for the sequel (or even the novel it would be loosely based on) and created their own, ''JurassicParkPart2TheChaosContinues''. It had a vaguely similar plot to the eventual sequel; a rival genetics company tries to take control of the island by force, and Alan Grant is sent to stop them. Nobody stopped to question why Grant was suddenly a gun-toting Contra-esque mercenary... or why he'd care about any of this. Good music, though.
* ''[[VideoGame/StreetFighterI Street Fighter]]'' was another interesting example in that Tiertex, the company responsible for porting the original ''Street Fighter'' to home computers ([[PortingDisaster who also did a terrible job at at it]]) decided they couldn't wait for ''VideoGame/StreetFighterII'' to revolutionize the fighting game genre, so they took their port of ''Street Fighter'' and made their own original sequel to it, titled ''Human Killing Machine'' ([[http://www.youtube.com/watch?v=5zUkK14bHDk which was also quite crap]]).
* Years before Capcom released ''Strider 2'', the official arcade sequel to the original ''VideoGame/{{Strider}}'', they handed the ''Strider'' license to U.S. Gold and Tiertex (the companies that produced the European computer ports of the first arcade game) to produce their own sequel titled ''Strider II'' (spelled with a Roman numeral). This sequel was originally made for the same set of European computer formats and then remade for the SegaGenesis and GameGear, getting a stateside release in the form of ''Journey from Darkness: Strider Returns''.
* When Konami wanted to make a sequel to ''VideoGame/MetalGear'' following the success of the NES port in North America, they commissioned one of their teams to make a sequel specifically for the American market, resulting in the creation of ''[[VideoGame/SnakesRevenge Snake's Revenge]]''. This inspired Hideo Kojima to make his own sequel for the [=MSX2=], ''[[VideoGame/MetalGear2SolidSnake Metal Gear 2: Solid Snake]]''. ''Snake's Revenge'' is not considered part of the official ''Franchise/MetalGear'' continuity, as the events of the game are incompatible with what occurs in the official sequel. [[spoiler:Namely, the way Big Boss' return is handle in both games. Both games takes place three/four years after the original ''Metal Gear'' and have Big Boss forming a new terrorist organization with a new Metal Gear prototype in his hands. However, in ''Snake's Revenge'' he also turns in a huge cyborg during the final battle.]]
* A sequel to the original ''{{Gradius}}'' (a.k.a. ''Nemesis'') was made for the {{MSX}} titled ''Gradius 2'' (a.k.a. ''Nemesis II'') before the actual arcade sequel, ''Gradius II'' (a.k.a. ''Vulcan Venture''), was even made.
* ''[[GoldenAxe Golden Axe II]]'' for the SegaGenesis was made a year before the proper arcade sequel (''Golden Axe: Revenge of the Death Adder'') was released.

[[/folder]]

[[folder: Western Animation ]]

* ''TheSecretOfNIMH'' actually overtook the source material. While the Bluth film was rather jumping in and out of InNameOnly, the ending (and primary events) of Bluth's 1982 AnimatedAdaptation pretty much ruined any potential chance of covering the two books written by Jane Leslie Conly with Jenner and Nicodemus kicking the bucket (whereas they both survived in the books; however, it was implied that Jenner possibly died off-screen sometime in the first book with the mention of his party being electrocuted by a car battery). But Bluth honestly deserves this... his film was copyright 1982; Conly's books are dated 1986 and 1990, Chances are nobody even ''knew'' that Conly would take over or that the official book sequel would be released four years later. (whether or not the supposed remake will follow the books more faithfully is unknown).
** Bluth has also stated that if he were to make a sequel to ''The Secret of NIMH'', he'd actually cast Martin as the hero while Timothy was the villain. Interestingly, the sequel made 17 years later actually did the opposite.
* ''WesternAnimation/HeManAndTheMastersOfTheUniverse1983'': The series was put into production before the ''Franchise/MastersOfTheUniverse'' comic it was based on (and, by extent, the mini-comics that came with the action figures) could establish a concrete plot. This resulted in the story being retconned to fit in with the show.
* There may be four (or five, depending on how you see it) ''Shrek'' films, but only [[WesternAnimation/{{Shrek}} the original]] was a direct adaptation, albeit an extremely loose one. This is because William Steig remained obscure as a writer of children's books for his entire life, and ''Shrek'' never caught on well enough for him to make a sequel, even after witnessing the overwhelming success of the films.
----