History CanonImmigrant / AnimeAndManga

* In the ''Manga/{{Guyver}}'' anime film ''Out of Control'', the villainous [[EvilCounterpart Guyver II]] was given a GenderFlip. This female version of Guyver II was incorporated into the manga as another character named Valkyria.

** Unfortunately for Western fans, his games were on the Platform/{{Wonderswan}}, a handheld that was [[NoExportForYou never released outside Asia.]] The first of these games got an English translation for Hong Kong, but the translation sucked. When he did turn up in ''Tamers'', there was naturally massive confusion, as without the games to explain his backstory, he seemed to make absolutely no sense as a character. Interestingly enough, he's a ''different'' kind of Canon Immigrant, his games are canon to the Anime/DigimonAdventure universe, he cameoed in ''Our War Game'', and then twice in ''Anime/DigimonAdventure02'', and is a vital part of Ken's backstory. He moved to the ''Tamers'' universe after [=ZeedMilleniummon's=] final defeat, effectively immigrating from one universe to another.

** Unfortunately for Western fans, his games were on the UsefulNotes/{{Wonderswan}}, a handheld that was [[NoExportForYou never released outside Asia.]] The first of these games got an English translation for Hong Kong, but the translation sucked. When he did turn up in ''Tamers'', there was naturally massive confusion, as without the games to explain his backstory, he seemed to make absolutely no sense as a character. Interestingly enough, he's a ''different'' kind of Canon Immigrant, his games are canon to the Anime/DigimonAdventure universe, he cameoed in ''Our War Game'', and then twice in ''Anime/DigimonAdventure02'', and is a vital part of Ken's backstory. He moved to the ''Tamers'' universe after [=ZeedMilleniummon's=] final defeat, effectively immigrating from one universe to another.

* The VB-6 König Monster first appeared in the UsefulNotes/PlayStation game ''Macross Digital Mision VF-X''. ''Anime/MacrossFrontier'' is the first animated ''Anime/{{Macross}}'' series in which it has appeared. Fan theory holds that it got its due to its awesome, gigantic toy.

* In ''Manga/{{ARIA}}'', Ai was originally anime-only character, but starts to appear in special chapter in various guidebooks, culminating in [[spoiler:becoming Akari's apprentice]] in the last manga chapter (and anime episode).

* ''Manga/{{Bleach}}'': The {{Filler}} Zanpakuto Rebellion arc in the anime featured a Zanpakuto spirit named Muramasa as one of its {{Arc Villain}}s. Muramasa is mentioned by name in ''LightNovel/BleachCannotFearYourOwnWorld'', where it's stated to be an AncestralWeapon used by the Kuchiki family. Notably, the aforementioned filler arc is ''not'' mentioned in any capacity.

* ''Anime/MyOtome0Sifr'', the anime prequel to ''Anime/MyOtome'', features Mayo and Shion, characters originally from the ''LightNovel/MaiHimeDestiny'' LightNovels taking place in an AlternateContinuity to ''Anime/MyHime''. A rare example of trans-continuity, trans-''setting'' promotion to canon.

** The ''LightNovel/NarutoHiden'' light novels have canonized a number of things that were originally introduced in anime {{filler}} or the {{Non Serial Movie}}s, though some details still had to be changed to become canon-compliant--specifically, the events of most of the movies are not canon (except for ''Anime/TheLastNarutoTheMovie'' and ''Anime/BorutoNarutoTheMovie'', both of which ''are'' canon), but their locations (particularly the Blood Prison from the eponymous fifth ''Shippuden'' movie) and some of their characters were blended into canon.

* In ''Manga/DemonSlayerKimetsuNoYaiba'', the LightNovel side-publications actually present a few concepts that eventually are brought over to the manga, despite them being authored by Aya Yajima, with original manga author Gotouge Koyoharu just supervising it; examples include Zenitsu’s master Jigoro Kwajima having his name being revealed in the novels, the mentor and disciple relationship Kyojuro and Mitsuri had, etc.

* The Franchise/{{Gundam}} video game series ''SD Gundam G Generation'' features a number of OriginalGeneration mecha in order to spice things up. So far, only one of these has filtered back into the source material: the Gundam Belphagor, from ''[[Anime/AfterWarGundamX Gundam X]]'''s After War time line, which shows up in the sequel manga ''Under The Moonlight''.
** Gundam actually has quite a lot of these. Mechs that only appear in ''MSV'' model kit lines have been showing up in subsequent anime productions since ''[[Anime/MobileSuitZetaGundam Zeta Gundam]]'', ''[[Anime/MobileSuitGundamUnicorn Gundam Unicorn]]'' being a particularly massive example, which also brings in the Gustav Karl mobile suit from ''[[Literature/MobileSuitGundamHathawaysFlash Hathaway's Flash]].''

** Speaking of ''Rebuild'', someone who looks a lot like Mari Makinami (and sharing her name) makes a brief appearance in the last chapter of the manga, being presented as around Yui's age. [[spoiler:Normally, given that the Mari of ''Rebuild'' looked around the same age as Shinji, Asuka, and Rei, the Mari of the manga would likely be ''Rebuild'' Mari's' mother -- but then, ''3.0+1.0'' revealed that Mari suffered from OlderTheyTheyLook even more than the other pilots did and is at least Yui's age.]]

** During the same filler arc, new designs are drawn up for every Zanpakuto spirit, and none of them are ever seen again... except for Shinsui's, Katen Kyōkotsu, [[spoiler:who reappears later when Shinsui reveals his bankai during the 1000-year Blood War Arc.]]

** ''Anime/DragonBallSuperSuperHero'' brought in [[spoiler:Android #21, or rather the human base that she would be modeled after, as Dr. Gero's wife Vomi.]]

** Goku's father Bardock. Reportedly, Creator/AkiraToriyama liked the Bardock movie special so much that he included him in the manga, in a brief two-panel flashback during Goku's battle with Freeza. Anime/DragonBallZKai, a recut of the anime which sheds off the majority of the filler, actually makes Bardock's death the ''prologue'' to the series.

* ''[[Anime/ElHazardTheMagnificentWorld El Hazard]]'' (the TV series) featured a goofy and silly version of the "ultimate weapon android" Ifurita, as opposed to the far more serious and angsty Ifurita from the original {{OAV}} continuity. However, her popularity led to her being written into the latter continuity via the Radio Dramas, where her name was changed to "Ifurina."

* The ''Anime/TheIdolMaster'' anime introduces, in episode 10, the unit Shinkan Shoujo. The latter appears in the game ''The Idolmaster One For All, but in name only. They have no voice, model or image song.

** Speaking of ''Rebuild'', someone who looks a lot like Mari Makinami (and sharing her name) makes a brief appearance in the last chapter of the manga, being presented as around Yui's age. [[spoiler:Normally, given that the Mari of ''Rebuild'' looked around the same age as Shinji, Asuka, and Rei, the Mari of the manga would likely be ''Rebuild'' Mari's' mother -- but then, ''3.0+1.0'' revealed that Mari suffered from OlderTheyTheyLook even more than the other pilots did and is indeed around Yui's age, so the Mari of the manga likely wasn't an Eva pilot like her ''Rebuild'' counterpart since that was the cause of the condition in all of them.]]

** The Yardrats, the race who taught Goku [[{{Teleportation}} Instant Transmission]], fall under the same heading as King Vegeta and the Grand Kai: mentioned but unseen in the manga and given a character design for a {{Filler}} episode of ''DBZ''. ''Dragon Ball Super'' introduced Jimeze, a Yardrat fighting for Universe 2 in the Tournament of Power; what makes this interesting is, Toriyama created an entirely different design for the Yardrats for ''VideoGame/DragonBallOnline'' (one that somewhat resembles ''Super'''s Zen'o) but the filler design was used instead. The Galactic Prisoner Saga of the ''Super'' manga uses both designs with the explanation that they're different species from the same planet.

** Red-Eyes Black Dragon was originally created for Bandai's version of the ''Magic & Wizards''/''Duel Monsters'' card game, and the ''[[Anime/YuGiOhFirstAnimeSeries Toei anime]]'' made a NonSerialMovie to promote Red-Eyes. Red-Eyes would later be integrated into the manga during the ''Duelist Kingdom'' arc.