History StableTimeLoop / AnimeAndManga

** In one early Manga short story, Nobita and Doraemon are reading an in-universe manga that ends in a CliffHanger. Not wanting to wait until the next issue to see what happens, Doraemon goes to the author's house, only to find out that even he doesn't know how to continue the story. Undefeated, Doraemon goes into the future to buy the next issue, figuring that the author will come up with something eventually. As it turns out, he doesn't, and the future issue that Doraemon brings to the past is actually what the author copies to write that issue in the present. As a CruelTwistEnding, the future issue that Doraemon brings actually contains even more CliffHanger, forcing Doraemon to keep bringing him his own manga from the future so he knows how to continue. The man swears to quit his job afterward.

** Nobita's uncle, Nobirou, is only alive because Nobita and Doraemon go back in time to investigate his story about a disappeared elephant in the Tokyo zoo. Along the way, they save the elephant from being euthanized by an Imperial Japanese officer and send it to India, causing it to disappear. Decades later, while Uncle Nobirou is lost in an Indian jungle, what comes to his rescue is none other than the elephant that Doraemon and Nobita saved from yesteryear. Since Nobirou survives his trip and is able to return home to tell the story, Nobita and Doraemon are prompted to go back in time and check on the elephant in the first place.

** In one story, Nobita bribes Doraemon with a load of Dorayaki to do his homework. Unable to do it by himself, he fetches future version'''s''' of himself from hours into the future to do the homework with him. However, all future versions of himself are badly beaten, and the reason why soon becomes apparent: after doing the homework, all of the future Doraemons gang up on and beat the present Doraemon to scraps, causing him to reach the damaged state shown by his future selves. As soon as the badly beaten present Doraemon tries to rest, he gets fetched by his intact past self to do the homework. As soon as he's done with the homework, he's fetched yet again by his past self. Once done again, Doraemon tries to attack Nobita in a fit of rage, only to be snatched again by his past self to do the homework. Since the original Doraemons has snatched multiple future versions of himself from the future at once, from their perspective he's coming every few hours to take them away.

** In one story, Nobita bribes Doraemon with a load of Dorayaki to do his homework. Unable to do it by himself, he fetches future version'''s''' of himself from hours into the future to do the homework with him. However, all future versions of himself are badly beaten, and the reason why soon becomes apparent: after doing the homework, all of the future Doraemons gang up on and beat the present Doraemon to scraps, causing him to reach the damaged state shown by the future Doraemons. As soon as the badly beaten present Doraemon tries to rest, he gets fetched by his intact past self to do the homework. As soon as he's done with the homework, he's fetched yet again by his past self. Once done again, Doraemon tries to attack Nobita in a fit of rage, only to be snatched again by his past self to do the homework. Since the original Doraemons has snatched multiple future versions of himself from the future at once, from their perspective he's coming every few hours to take them away.

** In one early Manga short story, Nobita and Doraemon are reading an in-universe manga that ends in a CliffHanger. Not wanting to wait until the next issue to see what happens, Doraemon goes to the author's house, only to find out that even he doesn't know how to continue the story. Undefeated, Doraemon goes into the future to buy the next issue, figuring that the author will inevitably come up with something. As it turns out, he doesn't, and the future issue that Doraemon buys and brings to the past is actually what inspires the author to write that issue in the present. As a CruelTwistEnding, the future issue that Doraemon brings actually contains even more CliffHanger, forcing Doraemon to keep bringing him his own manga from the future so he knows how to continue. The man swears to quit his job afterward.

*** In another example related to his dad, Nobita goes back in time to see his dad's childhood crush, whom he describes as a beautiful little girl who gave him chocolate. As it turns out, Nobita is not only that little girl (in drag), but he also unwittingly saves his dad's life and thus his own life when Mr. Nobi wants to kill himself due to the stress of being a child laborer during UsefulNotes/WorldWarII.

** In one early Manga short story, Nobita and Doraemon are reading an in-universe manga that ends in a CliffHanger. Not wanting to wait until the next issue to see what happens, Doraemon goes to the author's house, only to find out that even he doesn't know how to continue the story. Undefeated, he goes into the future to buy the next issue, figuring that the author will inevitably come up with something. As it turns out, he doesn't, and the future issue that Doraemon brings to the past is actually what inspires the author to write that issue in the present. As a CruelTwistEnding, the future issue that Doraemon brings actually contains even more CliffHanger, forcing Doraemon to keep bringing him his own manga from the future so he knows how to continue. The man swears to quit his job afterward.

** In one early Manga short story, Nobita and Doraemon are reading an in-universe manga that ends in a CliffHanger. Not wanting to wait until the next issue to see what happens, Doraemon goes to the author's house, only to find out that even he doesn't know how to continue the story. Undefeated, he goes into the future to buy the next issue, figuring that the author will inevitably come up with something. As it turns out, he doesn't, and the future issue that Doraemon brings to the past is actually what inspires the author to write that issue in the present.

* The sundial watch in ''LightNovel/HumanityHasDeclined'' seems to exist in one: [[NoNameGiven "Watashi"]] gets it from her grandfather he says he got it from a pretty lady that wasn't her grandmother. Then Watashi gets sent back in time, where an annoying brat steals it from her...

* In the Bamboo Rhapsody episode of ''LightNovel/HaruhiSuzumiya'', [[spoiler:Kyon travels back 3 years and ends up being the cause of Haruhi attending his highschool]]. When Kyon complains that this contradicts Mikuru's explanation of TimeTravel, a [[SufficientlyAdvancedAlien sufficiently-advanced Yuki]] brushes it off with, "since there's no conclusion to the paradox theory, there's no way to prove there's no paradox." It gets tied in ''knots'' in ''[[LightNovel/HaruhiSuzumiya The Disappearance of Suzumiya Haruhi]]'', where [[spoiler:we see that three copies of Kyon and Mikuru actually exist at the same time for a brief period on December 18 (and Kyon actually memorizes the words he heard from his future self, to later tell them to his past self)]]. Mikuru is the embodiment of stable time loops anyway; an entire book is dedicated to her walking around with Kyon triggering key events for her future. [[spoiler:This phenomenon pisses off [[EvilCounterpart the anti-Mikuru]], [[BigBad Fujiwara]] aka "Sneering Bastard," to no end; he ''hates'' that YouCantFightFate.]]

* During the Great War in ''LightNovel/KyoKaraMaoh'', Suzanna Julia doesn't fully accept that she's going to die and that her soul is to become the next Maoh. So, to convince her, what does Shinou do? SEND HER YUURI, OF COURSE. Yuuri's presence in the past makes Julia finally accept her fate, and in turn makes it possible for him to exist as Maoh in the future.

** On the side note, the reason Mikage gave Nanami his position as the Land God [[spoiler: was because he had met future!Nanami and knew what he needed to do from her, which lead to him leaving the shrine for decades.]]

* In ''LightNovel/DateALive'', [[spoiler:events that occur near the tail-end of Volume 10 reveal that the entire series, up to that point, had been running on one of these.]]

* In ''LightNovel/TheRisingOfTheShieldHero'' light novel, the Shield Hero Naofumi travels to the past and plays a critical role in the downfall of nation of Piensa. The remnants of Piensa would then go on to found Melromarc and then the Church of Three Heroes, which demonized the Shield Hero. Naofumi's suffering at the hands of Melromarc and the Church in the future shaped him into the man who would one day destroy Piensa.

* ''Manga/KamisamaKiss'' has Nanami traveling back five hundred years to Feudal Japan to save a LittleBitBeastly {{Kitsune}}, Tomoe, that she has fallen in love with from a curse. [[spoiler: Turns out she is the one who saved a wounded Tomoe from the village militia, not Tomoe's first love Yukiji, and that she is directly responsible for Tomoe falling in love with "Yukiji" to begin with. Not to mention the catalyst that past!Tomoe used for the spell to turn him into human was actually the hair pin present!Tomoe gave Nanami and she had brought it along with her into the past.]] And this is the original event that sets all other parts of Nanami and Tomoe's story in motion.

* In ''Anime/Pokemon4Ever'', it's revealed that Ash inspired a young Professor Samuel Oak to invent the [[MonsterCompendium Pokédex]] by showing it to him after he was taken to the future by Celebi, inadvertently creating a bootstrap paradox.

** The time loop in the series is so stable that it is in fact a bootstrap paradox. By changing the past, Doraemon causes Nobita to marry an entirely different woman, yet somehow his descendant Nobisuke remains the same. This means that Nobita always marries Shizuka, and the future album that Nobisuke shows him comes from a timeline that never exists.

** The time loop in the series is so stable that it is in fact a bootstrap paradox. By changing the past, Doraemon causes Nobita to marry an entirely different woman, yet somehow his descendant Nobisuke remains the same. This means that Nobita always marries Shizuka, and the album from his original timeline has no origin.

** The time loop in the series is so stable that it can flat-out defy the Grandfather Paradox. By changing the past, Doraemon causes Nobita to marry an entirely different woman, yet somehow his descendant Nobisuke remains the same.

* During the (rather long) Day 1 of the Mahora Fair sub-arc in ''Manga/MahouSenseiNegima'' we get to see a Time Loop following Negi's use of it. Negi redoes the same day four times to make sure he has enough time to spend with every student. At various points Negi will run into students he hasn't run into yet because he's not that far in the loop. Setsuna, Asuna, Konoka and Kotaro all go along with Negi at one time or another in this loop. Naturally when Time Travel isn't a neat parlor trick it stops being so stable... or loop like, and quite [[TimeyWimeyBall wibbly-wobbly]].

* ''Anime/{{Doraemon}}'' is fond of this. Many time the titular character and Nobita time-travel to fix an event in the past only to find out that they are actually the culprit of what they are trying to fix.

** ''Anime/DragonBallSuper'': As it turns out, the existence of Goku Black depends on this trope. [[spoiler:Zamasu is weary of mortals. One day a mortal named Goku shows up at his door and asks to fights him. Zamasu gets the idea to steal Goku's body and start a genocidal rampage from this. The time loop comes from the fact that the reason Goku showed up at Zamasu's in the first place is because of his future genocidal rampage. The [[Manga/DragonBallSuper manga]] changes this by having Zamasu watch Goku on [=GodTube=] instead.]]

* Homura from Madoka causes a time loop, [[spoiler: as she keeps going back and redoing events in an increasingly desperate attempt to keep Madoka safe.]]

** Another even more complicated instance is the existence of the Real Syaoran. Basically, after both the clones of Sakura and Syaoran have been killed, Yuuko sends them back to the past to start life anew. Then, some time later they eventually gave birth to the Real Syaoran whom after a series of events, led to the creation of both him and Sakura's clone under Fei Wang Reed's influence where they inevitably die and start the loop again. Indeed this in effect makes Syaoran a ParadoxPerson and once the dimensions began to revert to normal, Syaoran is also about to fade from existence, forcing him to travel between worlds as price for his continued existence.

** Frieza had the Saiyans wiped out due to his growing fear that they would overthrow him, with the legend of the "Super Saiyan" being a key part of said fear. ''[[Anime/DragonBallEpisodeOfBardock Episode of Bardock]]'' shows that when Goku's father Bardock was hit by Frieza's Death Ball that destroyed Planet Vegeta, he was somehow thrown into the past. There he defeats Frieza's ancestor Chilled, going Super Saiyan in the process. Chilled uses his dying breath to warn his minions of the Saiyans' Super form, thus creating the very legend that led to the genocide of the Saiyans and Bardock being sent to the past. Of course, Episode of Bardock's status as canon is up in the air and heavily contested.
** ''Anime/DragonBallSuper'': As it turns out, the existence of Goku Black depends on this trope. [[spoiler:Zamasu is weary of mortals. One day a mortal named Goku shows up at his door and fights him. Zamasu gets the idea to steal Goku's body and start a genocidal rampage from this. The time loop comes from the fact that the reason Goku showed up at Zamasu's in the first place is because of his future genocidal rampage. The [[Manga/DragonBallSuper manga]] changes this by having Zamasu watch Goku on [=GodTube=] instead.]]

* ''Manga/DragonBall'' -- Kami sends Kid Goku back in time to help his future instructor Roshi.
** Freeza had the Saiyans wiped out due to his growing fear that they would overthrow him, with the legend of the "Super Saiyan" being a key part of said fear. ''[[Anime/DragonBallEpisodeOfBardock Episode of Bardock]]'' shows that when Goku's father Bardock was hit by Freeza's Death Ball that destroyed Planet Vegeta, he was somehow thrown into the past. There he defeats Freeza's ancestor Chilled, going Super Saiyan in the process. Chilled uses his dying breath to warn his minions of the Saiyans' Super form, thus creating the very legend that led to the genocide of the Saiyans and Bardock being sent to the past. Of course, Episode of Bardock's status as canon is up in the air and heavily contested.
* ''Anime/DragonBallSuper'' - As it turns out, the existence of Goku Black depends on this trope. [[spoiler:Zamasu is weary of mortals. One day a mortal named Goku shows up at his door and fights him. Zamasu gets the idea to steal Goku's body and start a genocidal rampage from this. The time loop comes from the fact that the reason Goku showed up at Zamasu's in the first place is because of his future genocidal rampage. The [[Manga/DragonBallSuper manga]] changes this by having Zamasu watch Goku on [=GodTube=] instead.]]