Is there an issue? Send a MessageReason:
None
Added DiffLines:
* ''Anime/PokemonChronicles'' has the episode "Celebi and Joy," wherein Richie is sent to the past by Celebi to prevent Nick and his father dying in a rock landslide.
Is there an issue? Send a MessageReason:
None
Changed line(s) 48 (click to see context) from:
* The ''Anime/PokemonTheSeriesXY'' episode "Rotom's Wish", Ash and Company help Weston's Rotom by having it possess electric items to learn Leaf Storm, Blizzard and Hydro Pump, giving it the edge against Mantle's Krookodile, so Weston doesn't lose the ownership of the Lost Hotel to Mantle.
to:
* The In the ''Anime/PokemonTheSeriesXY'' episode "Rotom's Wish", Ash and Company help Weston's Rotom by having it possess electric items to learn Leaf Storm, Blizzard and Hydro Pump, giving it the edge against Mantle's Krookodile, so Weston doesn't lose the ownership of the Lost Hotel to Mantle.
Is there an issue? Send a MessageReason:
None
Changed line(s) 47 (click to see context) from:
* ''Anime/PokemonTheSeriesRubyAndSapphire'' season nine episode "Time Warp Heals All Wounds" sends May, Meowth and Squirtle back in time to prevent a man unknowingly leaving his pregnant girlfriend. May finds a lost necklace belonging to the woman, but oddly, no real explanation is given for the time travel.
to:
* The ''Anime/PokemonTheSeriesRubyAndSapphire'' season nine episode "Time Warp Heals All Wounds" sends May, Meowth and Squirtle back in time to prevent a man unknowingly leaving his pregnant girlfriend. May finds a lost necklace belonging to the woman, but oddly, no real explanation is given for the time travel.
* The ''Anime/PokemonTheSeriesXY'' episode "Rotom's Wish", Ash and Company help Weston's Rotom by having it possess electric items to learn Leaf Storm, Blizzard and Hydro Pump, giving it the edge against Mantle's Krookodile, so Weston doesn't lose the ownership of the Lost Hotel to Mantle.
* The ''Anime/PokemonTheSeriesXY'' episode "Rotom's Wish", Ash and Company help Weston's Rotom by having it possess electric items to learn Leaf Storm, Blizzard and Hydro Pump, giving it the edge against Mantle's Krookodile, so Weston doesn't lose the ownership of the Lost Hotel to Mantle.
Is there an issue? Send a MessageReason:
None
* Happens at the end of the climax battle in the manga rendition of the Monster Association saga of ''Webcomic/OnePunchMan''. [[spoiler:With Genos and all the heroes sent on the Monster Association mission dead, the planet Jupiter and its moon Io completely obliterated, and Saitama still unbeatable, Garou is finally overcome with regret when he realises he accidentally caused the death of his MoralityPet Tareo. Rather than succumbing to despair, Garou reveals the existence of God to Saitama and tries to teach him a way to harness God's power. God, enraged, begins to kill Garou by transforming him into a pillar of salt, but not before he is able to fling Saitama back in time, instructing him to use the strength accumulated over the course of their fight to defeat his past self in one punch. It works.]]
Deleted line(s) 55 (click to see context) :
* Happens at the end of the climax battle in the manga rendition of the Monster Association saga of ''Webcomic/OnePunchMan''. [[spoiler:With Genos and all the heroes sent on the Monster Association mission dead, the planet Jupiter and its moon Io completely obliterated, and Saitama still unbeatable, Garou is finally overcome with regret when he realises he accidentally caused the death of his MoralityPet Tareo. Rather than succumbing to despair, Garou reveals the existence of God to Saitama and tries to teach him a way to harness God's power. God, enraged, begins to kill Garou by transforming him into a pillar of salt, but not before he is able to fling Saitama back in time, instructing him to use the strength accumulated over the course of their fight to defeat his past self in one punch. It works.]]
Is there an issue? Send a MessageReason:
None
Changed line(s) 55 (click to see context) from:
to:
* Happens at the end of the climax battle in the manga rendition of the Monster Association saga of ''Webcomic/OnePunchMan''. [[spoiler:With Genos and all the heroes sent on the Monster Association mission dead, the planet Jupiter and its moon Io completely obliterated, and Saitama still unbeatable, Garou is finally overcome with regret when he realises he accidentally caused the death of his MoralityPet Tareo. Rather than succumbing to despair, Garou reveals the existence of God to Saitama and tries to teach him a way to harness God's power. God, enraged, begins to kill Garou by transforming him into a pillar of salt, but not before he is able to fling Saitama back in time, instructing him to use the strength accumulated over the course of their fight to defeat his past self in one punch. It works.]]
Is there an issue? Send a MessageReason:
None
Changed line(s) 54 (click to see context) from:
[[/folder]]
to:
----
Is there an issue? Send a MessageReason:
None
Changed line(s) 7 (click to see context) from:
* ''Manga/{{DNA2}}'' begins its story with time-travelling special agent Karin Aoi coming to the past to prevent the "Super Playboy" from ever coming to be, thus preventing an untenable overpopulation crisis. This is accomplished by shooting his past self, Junta Momonari, with a special bullet that will rewrite his DNA so that his "Super Playboy" attributes never manifest. Unfortunately, Karin screws the pooch and accidentally shoots Junta with a different bullet that she had crafted for the purpose of fashioning the perfect husband, in so doing causing Junta to become the "Super Playboy" much sooner than he would otherwise, and the rest of the series follows Karin trying to right this wrong before her mistake causes an even worse overpopulation crisis.
to:
* ''Manga/{{DNA2}}'' begins its story with time-travelling special agent Karin Aoi coming to the past to prevent the "Super Playboy" from ever coming to be, thus preventing an untenable overpopulation crisis. This is accomplished by shooting his past self, Junta Momonari, with a special bullet that will rewrite his DNA so that his "Super Playboy" attributes never manifest. Unfortunately, Karin screws the pooch and accidentally shoots Junta with a different bullet that she had crafted for the purpose of fashioning the perfect husband, in so doing causing Junta to not only become the "Super Playboy" much sooner than he would otherwise, and the but increasing his "Super Playboy" powers exponentially! The rest of the series follows Karin trying to right this wrong before her mistake causes an even worse overpopulation crisis.
Is there an issue? Send a MessageReason:
None
* ''Manga/{{DNA2}}'' begins its story with time-travelling special agent Karin Aoi coming to the past to prevent the "Super Playboy" from ever coming to be, thus preventing an untenable overpopulation crisis. This is accomplished by shooting his past self, Junta Momonari, with a special bullet that will rewrite his DNA so that his "Super Playboy" attributes never manifest. Unfortunately, Karin screws the pooch and accidentally shoots Junta with a different bullet that she had crafted for the purpose of fashioning the perfect husband, in so doing causing Junta to become the "Super Playboy" much sooner than he would otherwise, and the rest of the series follows Karin trying to right this wrong before her mistake causes an even worse overpopulation crisis.
Deleted line(s) 39 (click to see context) :
* ''Manga/{{DNA2}}'' begins its story with time-travelling special agent Karin Aoi coming to the past to prevent the "Super Playboy" from ever coming to be, thus preventing an untenable overpopulation crisis. This is accomplished by shooting his past self, Junta Momonari, with a special bullet that will rewrite his DNA so that his "Super Playboy" attributes never manifest. Unfortunately, Karin screws the pooch and accidentally shoots Junta with a different bullet that she had crafted for the purpose of fashioning the perfect husband, in so doing causing Junta to become the "Super Playboy" much sooner than he would otherwise, and the rest of the series follows Karin trying to right this wrong before her mistake causes an even worse overpopulation crisis.
Is there an issue? Send a MessageReason:
None
Added DiffLines:
* ''Manga/{{DNA2}}'' begins its story with time-travelling special agent Karin Aoi coming to the past to prevent the "Super Playboy" from ever coming to be, thus preventing an untenable overpopulation crisis. This is accomplished by shooting his past self, Junta Momonari, with a special bullet that will rewrite his DNA so that his "Super Playboy" attributes never manifest. Unfortunately, Karin screws the pooch and accidentally shoots Junta with a different bullet that she had crafted for the purpose of fashioning the perfect husband, in so doing causing Junta to become the "Super Playboy" much sooner than he would otherwise, and the rest of the series follows Karin trying to right this wrong before her mistake causes an even worse overpopulation crisis.
Is there an issue? Send a MessageReason:
None
Changed line(s) 43 (click to see context) from:
* A great part of the ''LightNovel/HaruhiSuzumiya'' LightNovels deals with Kyon trying to rectify past events in order not to let Haruhi's powers go haywire. Although he travels back in time mainly to set Haruhi off so that she'd create aliens, time travellers and [=ESPers=], and to fix up the events on December 18th. On that day, there's a point in time where there's 3 Mikurus and 4 Kyons. December 18th was only because of ''Disappearance'', and to fix what Yuki did.
to:
* A great part of the ''LightNovel/HaruhiSuzumiya'' ''Literature/HaruhiSuzumiya'' LightNovels deals with Kyon trying to rectify past events in order not to let Haruhi's powers go haywire. Although he travels back in time mainly to set Haruhi off so that she'd create aliens, time travellers and [=ESPers=], and to fix up the events on December 18th. On that day, there's a point in time where there's 3 Mikurus and 4 Kyons. December 18th was only because of ''Disappearance'', and to fix what Yuki did.
Changed line(s) 50 (click to see context) from:
* ''LightNovel/DateALive'': Kurumi's goal is to get enough power to travel thirty years back into the past to [[spoiler:kill the first Spirit, who was responsible for making Kurumi herself into a Spirit and an unwitting serial killer]]. Additionally, her power is also used (by herself and by others) to solve other problems, including [[spoiler:Origami's [[SuperpoweredEvilSide Inversion]] and Shidou's deaths.]]
to:
* ''LightNovel/DateALive'': ''Literature/DateALive'': Kurumi's goal is to get enough power to travel thirty years back into the past to [[spoiler:kill the first Spirit, who was responsible for making Kurumi herself into a Spirit and an unwitting serial killer]]. Additionally, her power is also used (by herself and by others) to solve other problems, including [[spoiler:Origami's [[SuperpoweredEvilSide Inversion]] and Shidou's deaths.]]
Is there an issue? Send a MessageReason:
None
Changed line(s) 40 (click to see context) from:
* Subverted in ''Anime/DragonBallZ''. Future Trunks also attempts to set right what once went wrong, but he does this in a timeline not his own: since in DBZ every timeline counts as another dimension, any changes made in the current time will not directly affect Future Trunks' past or future. He still wants to help out, hoping to create at least one peaceful world, and to return to his own time strong enough to finally stop what he wanted to prevent.
to:
* Subverted in ''Anime/DragonBallZ''. Future Trunks also attempts to set right what once went wrong, but he does this in a timeline not his own: since in DBZ ''DBZ'' every timeline counts as another dimension, any changes made in the current time will not directly affect Future Trunks' past or future. He still wants to help out, hoping to create at least one peaceful world, and to return to his own time strong enough to finally stop what he wanted to prevent.
Changed line(s) 42 (click to see context) from:
* In ''Manga/JojosBizarreAdventureDiamondIsUnbreakable'', BigBad [[SerialKiller Yoshikage Kira]] gains his TimeMaster power "Bites the Dust" and uses it to successfully [[HeroKiller kill off the entire main cast]] with his stepson [[KidHero Hayato]] as the catalyst (making him a ''literal'' TykeBomb). Thankfully Hayato manages to undo it by tricking Kira into revealing himself in front of [[TheHero Josuke]], forcing him to deactivate it to defend himself before it can take effect in the present.
to:
* In ''Manga/JojosBizarreAdventureDiamondIsUnbreakable'', BigBad [[SerialKiller Yoshikage Kira]] gains his TimeMaster power "Bites the Dust" and uses it to successfully [[HeroKiller kill off the entire main cast]] with his stepson [[KidHero Hayato]] as the catalyst (making him a ''literal'' TykeBomb). Thankfully Thankfully, Hayato manages to undo it by tricking Kira into revealing himself in front of [[TheHero Josuke]], forcing him to deactivate it to defend himself before it can take effect in the present.
Is there an issue? Send a MessageReason:
None
Changed line(s) 7 (click to see context) from:
* The main plot of Manga/TokyoRevengers consists of Takemichi [[PeggySue traveling back to stop his girlfriend's death]] at the hands of the Tokyo Manji gang.
to:
* The main plot of Manga/TokyoRevengers ''Manga/TokyoRevengers'' consists of Takemichi [[PeggySue traveling back to stop his girlfriend's death]] at the hands of the Tokyo Manji gang.
Is there an issue? Send a MessageReason:
None
Changed line(s) 48 (click to see context) from:
* Towards the end of the first ''Anime/TheSlayers'' movie, Lina goes back in time to help Rowdy defeat Joyrock when he first arrived on Mipross Island, before he became as strong as he was in the present. Of course, this has a horrible side effect from Lina's perspective - since she defeated the demon decades before she was hired to defeat him, she ''didn't get paid''.
to:
* Towards the end of the first ''Anime/TheSlayers'' ''Literature/{{Slayers}}'' movie, Lina goes back in time to help Rowdy defeat Joyrock when he first arrived on Mipross Island, before he became as strong as he was in the present. Of course, this has a horrible side effect from Lina's perspective - since she defeated the demon decades before she was hired to defeat him, she ''didn't get paid''.
Is there an issue? Send a MessageReason:
None
Changed line(s) 2 (click to see context) from:
to:
[[foldercontrol]]
Deleted line(s) 34,35 (click to see context) :
Episode or Character Plots
Is there an issue? Send a MessageReason:
None
Added DiffLines:
[[SetRightWhatOnceWentWrong Setting Right What Once Went Wrong]] in AnimeAndManga
[[folder:Series Plots]]
* ''Anime/GeneratorGawl'' seems to fall into this category, seeing how the only reason Auge was able to take over was because Gawl, Koji, and Ryu went back in time to stop them. In the end Ryu was the one who created the include cells and gave Auge the ability to take over, which is what caused them to go back in the first place, turning it into a StableTimeLoop.
* An attempt at this is the driving force behind the MythArc of ''Anime/RaveMaster''. The series inverts the trope because changing history back to the way it was is the ''bad guys''' plan, as the original timeline's world was utterly destroyed save one survivor, who was able to change history to create the Rave world. On top of the [[EldritchAbomination Eldritch]] [[ClockRoaches Clock Roach]] out to undo the paradox involved, most of the late-story baddies want to see the "false" world destroyed.
* The premise of ''Anime/FlintTheTimeDetective''. The Time Shifters got scattered throughout history, changing the way certain historical events played out, and the Time Detectives have to capture them and put the past back the way it was.
* The main plot of Manga/TokyoRevengers consists of Takemichi [[PeggySue traveling back to stop his girlfriend's death]] at the hands of the Tokyo Manji gang.
* ''Manga/HenyokuNoLabyrinth'': Miyako only travels back in time to get together with her crush Hiroto who is the boyfriend of her sister. [[spoiler: She still fails because he still falls in love with her the first time they meet.]]
** It was also revealed that [[spoiler: Tsukasa wants to save Miyako from killing herself. It was also implied that he traveled back in time multiple times but he still failed every time.]]
* [[spoiler:[[TheStoic Homura]]]] from ''Anime/PuellaMagiMadokaMagica'' leaps time to save [[spoiler:Madoka]] from becoming a [[spoiler:''MagicalGirl'']], or more commonly known as a [[spoiler:[[OurLichesAreDifferent Lich]]]] that may transform in the future into a [[spoiler:[[EldritchAbomination witch]]]]. [[spoiler:Each successive attempt only makes things worse. However, each attempt manages to make Madoka stronger until she AscendedToAHigherPlaneOfExistence upon making her contract in this timeline]].
* One of the arcs in ''Manga/{{Kurohime}}'' involves two of the titled character's foes (Kurohime considered a bad guy in that world) going back in time to try killing her, for personal reason (revenge being the main motive, but also to keep the father of one of them being killed by her.) [[spoiler:Its a bit of a twofer subvision. 1) They realize Kurohime not as evil as they figured and learn the reason behind her motives and 2) ''They'' wind up inadvertently causing the events that lead to the father's death. Kurohime wasn't even trying to kill him but took the blame anyway.]]
* ''Manga/{{Amakusa 1637}}'' is built around this trope. Six schoolers from modern Kobe end up thrown in the Nagasaki of 1637, few before the failed UsefulNotes/JapaneseChristian rebellion of Shiro Amakusa; once they reunite and assess their situation, they decide to pull this trope to avert such tragedy. [[spoiler:It works.]]
* This is the story of the first ''Anime/TenchiUniverse'' film, ''Tenchi Muyo in Love'' - the creature KAIN had killed Tenchi's mom in 1976 and the gang has to go back to stop him.
* ''VideoGame/ToukenRanbu'' adaptations run into this theme quite a bit, since they're fighting against forces that want to irrevocably change history for their own nefarious purposes:
** In ''Anime/ToukenRanbuHanamaru'', the Sword Warriors are constantly reminding each other that this is ''not a good thing'', and that no matter how much they cared for their previous masters, they need to ''prevent'' history from being changed by their enemies, not to change it themselves. And all of them can resist... [[spoiler:until one of them can't]].
** Its actiony counterpart ''Anime/KatsugekiToukenRanbu'' runs into the same problem; though the defector isn't the one with regrets, it's the person who empathized with him and tried to change history for the former's sake.
* This quickly becomes a running plot point for ''Manga/MyWifeIsWagatsumaSan'' - Aoshima sees some aspect of the life of either him or his friends that he bemoans, so he tries to find some way to correct it in the present.
* ''Anime/YuGiOhBondsBeyondTime'' was this for ''the bad guy'' - he believes that Duel Monsters would bring about the end of the world and he seeks to kill Pegasus to stop it from becoming popular.
* In ''Manga/RockLeesSpringtimeOfYouth'', Lee instinctively tries to kill Obito, stating he has the feeling that everyone will be better off if the Uchiha is dead.
* The premise of shoujo manga ''Manga/{{Orange}}'', where main character Naho receives a letter from her future self that warns her of the future death of a close friend, and it's up to her to prevent it.
* The premise of ''Manga/{{Erased}}'' features Satorou having this ability inherently being able to rewind time and being able to set things right when things go wrong. [[spoiler:The series itself features him returning to the past to save a former classmate and clear his mother's name and hopefully save her from being murdered.]]
* ''Anime/GenmaWars'' takes this turn late in the series when main characters Loof and Gin are sent back in time by their father to prevent their entire [[AfterTheEnd post-apocalyptic present]] from ever coming into place, and stop mankind from being conquered by demons in the distant past which is modern times. [[spoiler:Sadly, they ''fail spectacularly'' and end up returning to their own timeline with very little changed]].
* The plot for the second arc of ''[[Anime/{{Bakugan}} Bakugan: Mechtanium Surge]]'': [[spoiler:Mechravius Destroyer obliterates Bakugan City and everyone in it, then goes to New Vestroia and succeds in destroying all Bakugan, so Dan and the Brawlers go back in time to stop him. However, it does not save the fallen Nonets and the last two left alive perform a HeroicSacrifice to make this happen]].
* ''Anime/HugttoPrettyCure'' has this being done on ''both'' fronts. BigBad George Cry travels to the past in order to stop time to preserve everyone's happiness, [[spoiler:as not only does he reveal that Humanity was so struck with grief that they were unable to progress anymore, but his wife, the Future Hana Nono, became a victim of her own despair.]] This leads to Hugtan[[spoiler:/Cure Tomorrow]] and Hariham Harry to travel back into the past as well, encountering Hana to make a new Pretty Cure team to stop the Dark Tomorrow Company from freezing time and robing everyone of their future.
* ''Manga/GirlsGoAround'':
** The reason for the time-loops occuring. The creator made a decision and is regretting it, wondering if it was the right choice to make. The loop continues, until the regret has been dealt with.
** Turns out that Chihiro created her own time-loop [[spoiler:to keep Kyousuke from committing suicide on the day of graduation in three years]].
* ''Manga/TakopisOriginalSin'': Done multiple times by Takopi throughout the story:
** Takopi uses the power of the Happy Camera to prevent [[spoiler:Shizuka's suicide]] (which he succeeds at), as well as attempt to prevent Chappy getting sent away (which he fails at).
** [[spoiler:After becoming friends with Marina, Takopi decides to go back to make sure her future isn't miserable... by killing Shizuka, the "source" of her problems.]]
** [[spoiler:In the end, Takopi uses the last of his power to turn back time far enough and help the kids start reaching out to each other, at the cost of his own life.]]
[[/folder]]
Episode or Character Plots
[[folder:Episode or Character Plots]]
* ''Manga/FairyTail''
** Ultear's rationale in a nutshell. She’s willing to commit most any and all atrocities because if she succeeds, she’ll unlock TimeMaster magic that can just undo all the harm it took to reach her goals. [[spoiler:It takes the harsh realization that her "goal" could have been achieved [[PoorCommunicationKills if she just talked things out with her mother rather than assumed the absolute worst from a glance]] to realize how badly she fucked up and become TheAtoner.]]
** In the Grand Magic Games arc, [[spoiler:the Lucy from the BadFuture wants to stop the opening of the Eclipse Gate that would release an army of 10,000 dragons from the past to devastate the world and kill nearly everyone. Things get complicated when it turns out there's a Rogue from ''another'' BadFuture where she succeeded, but Acnologia took over the world and killed nearly everyone, so he wants to use the dragons to kill Acnologia and rule the world. On top of ''that'', Ultear attempts to invoke a DangerousForbiddenTechnique that would sacrifice her own lifespan to stop the dragons, but is only able to turn back time for one minute. Luckily for everyone, that one minute gave everyone temporal CombatClairvoyance and most of them were ''dying'' in that time frame, letting them turn the tide of battle.]]
** The final arc reveals [[spoiler:this is [[BigBad Zeref's]] final master plan to finally be free of his cursed immortality. By using the infinite magic of Fairy Heart, he will cast the Neo-Eclipse, which would overwrite the timeline by [[MentalTimeTravel sending his memories to his past self]] some 400 years ago and giving him all the information needed to both prevent being cursed by the gods by saving his brother Natsu from dying and no longer searching for the secrets of life and death, and to kill [[WorldsStrongestMan Acnologia]] before he becomes an unstoppable juggernaut. Since Zeref and Acnologia are such integral parts of the world's history, the present-world as it's known would be RetGone if it worked.]]
* In the ''Manga/NegimaMagisterNegiMagi'' manga, this is Chao Lingshen's motivation for messing around with her great grandfather's childhood, although whether she had an absurdly complicated {{plan}} set up, or was simply playing XanatosSpeedChess as her alterations made foreknowledge less useful is never made clear. She actually fixed the problem she went back to solve with the changes wrought by her first trip, but later makes a second one to tie up a loose end or two before the CosmicDeadline.
* Subverted in ''Anime/DragonBallZ''. Future Trunks also attempts to set right what once went wrong, but he does this in a timeline not his own: since in DBZ every timeline counts as another dimension, any changes made in the current time will not directly affect Future Trunks' past or future. He still wants to help out, hoping to create at least one peaceful world, and to return to his own time strong enough to finally stop what he wanted to prevent.
** Played straight in ''Anime/DragonBallZResurrectionF'' and ''Anime/DragonBallSuper''. After Frieza [[EarthShatteringKaboom destroys the Earth to kill Vegeta]], Whis rewinds time three minutes to give Goku a second chance.
* In ''Manga/JojosBizarreAdventureDiamondIsUnbreakable'', BigBad [[SerialKiller Yoshikage Kira]] gains his TimeMaster power "Bites the Dust" and uses it to successfully [[HeroKiller kill off the entire main cast]] with his stepson [[KidHero Hayato]] as the catalyst (making him a ''literal'' TykeBomb). Thankfully Hayato manages to undo it by tricking Kira into revealing himself in front of [[TheHero Josuke]], forcing him to deactivate it to defend himself before it can take effect in the present.
* A great part of the ''LightNovel/HaruhiSuzumiya'' LightNovels deals with Kyon trying to rectify past events in order not to let Haruhi's powers go haywire. Although he travels back in time mainly to set Haruhi off so that she'd create aliens, time travellers and [=ESPers=], and to fix up the events on December 18th. On that day, there's a point in time where there's 3 Mikurus and 4 Kyons. December 18th was only because of ''Disappearance'', and to fix what Yuki did.
* ''Manga/YakitateJapan'': Kazuma's last bread of the second TournamentArc is so amazingly delicious, it ''[[SugarWiki/MomentOfAwesome sends the judge back in time to]] {{retcon}} [[SugarWiki/MomentOfAwesome his own mother's death]]''.
* This is the goal of ''Anime/YuGiOh5Ds'' BigBad Z-One. However, Z-One is different than most in that he is willing to do anything, [[WellIntentionedExtremist no matter how immoral]] to meet this goal. The plan involved causing Zero Reverse, a disaster that killed thousands, and he was willing to murder anyone whom he felt was in the way. [[spoiler:In the finale, Yusei manages to surprise him completely, summoning Shooting Quasar Dragon as his ultimate card (Z-One had expected "Cosmic Blazar Dragon", the card that the Yusei in his timeline used as such), and in he end, it is heavily implied that Yusei's is able to prevent the BadFuture using much less drastic means.]]
* ''Anime/PokemonTheSeriesRubyAndSapphire'' season nine episode "Time Warp Heals All Wounds" sends May, Meowth and Squirtle back in time to prevent a man unknowingly leaving his pregnant girlfriend. May finds a lost necklace belonging to the woman, but oddly, no real explanation is given for the time travel.
* The 12th Pokémon movie ''Anime/PokemonArceusAndTheJewelOfLife'' has [[OlympusMons Arceus]] attempt to destroy humanity after it was betrayed in the past and Dialga sending Ash and his friends back in time to prevent it from happening while trying to hold it off in the present alongside Palkia and Giratina.
* Towards the end of the first ''Anime/TheSlayers'' movie, Lina goes back in time to help Rowdy defeat Joyrock when he first arrived on Mipross Island, before he became as strong as he was in the present. Of course, this has a horrible side effect from Lina's perspective - since she defeated the demon decades before she was hired to defeat him, she ''didn't get paid''.
* Discussed, but ultimately averted in ''Manga/MissKobayashisDragonMaid''. Lucoa offers to rewind time for Ilulu to before her HeelFaceTurn so she can undo her attempted destruction of the city and ease her guilt, but Ilulu turns down her offer on the grounds that it would also undo everything that Kobayashi had done for her.
* ''LightNovel/DateALive'': Kurumi's goal is to get enough power to travel thirty years back into the past to [[spoiler:kill the first Spirit, who was responsible for making Kurumi herself into a Spirit and an unwitting serial killer]]. Additionally, her power is also used (by herself and by others) to solve other problems, including [[spoiler:Origami's [[SuperpoweredEvilSide Inversion]] and Shidou's deaths.]]
* In the third ''Anime/TenchiMuyo'' OVA series, [[spoiler:once finding out about who the avatar of their universe's God was, Tokimi, Tsunami and Washu decide to reset time so that the avatar, Tenchi, can grow into his powers better and the damage caused by Tokimi creating Z is undone. However, since Z was the catalyst behind the third OVA series, Noike makes sure the altered message from Mihoshi gets sent so that she can come and join the gang.]]
* ''Anime/RebuildOfEvangelion'' gives the franchise its [[EarnYourHappyEnding long-overdue happy ending]] by [[spoiler:having Shinji use [[PhysicalGod the power of Instrumentality]] to undo Second & Third Impact and write the Angels out of mankind's history]].
[[/folder]]
[[folder:Series Plots]]
* ''Anime/GeneratorGawl'' seems to fall into this category, seeing how the only reason Auge was able to take over was because Gawl, Koji, and Ryu went back in time to stop them. In the end Ryu was the one who created the include cells and gave Auge the ability to take over, which is what caused them to go back in the first place, turning it into a StableTimeLoop.
* An attempt at this is the driving force behind the MythArc of ''Anime/RaveMaster''. The series inverts the trope because changing history back to the way it was is the ''bad guys''' plan, as the original timeline's world was utterly destroyed save one survivor, who was able to change history to create the Rave world. On top of the [[EldritchAbomination Eldritch]] [[ClockRoaches Clock Roach]] out to undo the paradox involved, most of the late-story baddies want to see the "false" world destroyed.
* The premise of ''Anime/FlintTheTimeDetective''. The Time Shifters got scattered throughout history, changing the way certain historical events played out, and the Time Detectives have to capture them and put the past back the way it was.
* The main plot of Manga/TokyoRevengers consists of Takemichi [[PeggySue traveling back to stop his girlfriend's death]] at the hands of the Tokyo Manji gang.
* ''Manga/HenyokuNoLabyrinth'': Miyako only travels back in time to get together with her crush Hiroto who is the boyfriend of her sister. [[spoiler: She still fails because he still falls in love with her the first time they meet.]]
** It was also revealed that [[spoiler: Tsukasa wants to save Miyako from killing herself. It was also implied that he traveled back in time multiple times but he still failed every time.]]
* [[spoiler:[[TheStoic Homura]]]] from ''Anime/PuellaMagiMadokaMagica'' leaps time to save [[spoiler:Madoka]] from becoming a [[spoiler:''MagicalGirl'']], or more commonly known as a [[spoiler:[[OurLichesAreDifferent Lich]]]] that may transform in the future into a [[spoiler:[[EldritchAbomination witch]]]]. [[spoiler:Each successive attempt only makes things worse. However, each attempt manages to make Madoka stronger until she AscendedToAHigherPlaneOfExistence upon making her contract in this timeline]].
* One of the arcs in ''Manga/{{Kurohime}}'' involves two of the titled character's foes (Kurohime considered a bad guy in that world) going back in time to try killing her, for personal reason (revenge being the main motive, but also to keep the father of one of them being killed by her.) [[spoiler:Its a bit of a twofer subvision. 1) They realize Kurohime not as evil as they figured and learn the reason behind her motives and 2) ''They'' wind up inadvertently causing the events that lead to the father's death. Kurohime wasn't even trying to kill him but took the blame anyway.]]
* ''Manga/{{Amakusa 1637}}'' is built around this trope. Six schoolers from modern Kobe end up thrown in the Nagasaki of 1637, few before the failed UsefulNotes/JapaneseChristian rebellion of Shiro Amakusa; once they reunite and assess their situation, they decide to pull this trope to avert such tragedy. [[spoiler:It works.]]
* This is the story of the first ''Anime/TenchiUniverse'' film, ''Tenchi Muyo in Love'' - the creature KAIN had killed Tenchi's mom in 1976 and the gang has to go back to stop him.
* ''VideoGame/ToukenRanbu'' adaptations run into this theme quite a bit, since they're fighting against forces that want to irrevocably change history for their own nefarious purposes:
** In ''Anime/ToukenRanbuHanamaru'', the Sword Warriors are constantly reminding each other that this is ''not a good thing'', and that no matter how much they cared for their previous masters, they need to ''prevent'' history from being changed by their enemies, not to change it themselves. And all of them can resist... [[spoiler:until one of them can't]].
** Its actiony counterpart ''Anime/KatsugekiToukenRanbu'' runs into the same problem; though the defector isn't the one with regrets, it's the person who empathized with him and tried to change history for the former's sake.
* This quickly becomes a running plot point for ''Manga/MyWifeIsWagatsumaSan'' - Aoshima sees some aspect of the life of either him or his friends that he bemoans, so he tries to find some way to correct it in the present.
* ''Anime/YuGiOhBondsBeyondTime'' was this for ''the bad guy'' - he believes that Duel Monsters would bring about the end of the world and he seeks to kill Pegasus to stop it from becoming popular.
* In ''Manga/RockLeesSpringtimeOfYouth'', Lee instinctively tries to kill Obito, stating he has the feeling that everyone will be better off if the Uchiha is dead.
* The premise of shoujo manga ''Manga/{{Orange}}'', where main character Naho receives a letter from her future self that warns her of the future death of a close friend, and it's up to her to prevent it.
* The premise of ''Manga/{{Erased}}'' features Satorou having this ability inherently being able to rewind time and being able to set things right when things go wrong. [[spoiler:The series itself features him returning to the past to save a former classmate and clear his mother's name and hopefully save her from being murdered.]]
* ''Anime/GenmaWars'' takes this turn late in the series when main characters Loof and Gin are sent back in time by their father to prevent their entire [[AfterTheEnd post-apocalyptic present]] from ever coming into place, and stop mankind from being conquered by demons in the distant past which is modern times. [[spoiler:Sadly, they ''fail spectacularly'' and end up returning to their own timeline with very little changed]].
* The plot for the second arc of ''[[Anime/{{Bakugan}} Bakugan: Mechtanium Surge]]'': [[spoiler:Mechravius Destroyer obliterates Bakugan City and everyone in it, then goes to New Vestroia and succeds in destroying all Bakugan, so Dan and the Brawlers go back in time to stop him. However, it does not save the fallen Nonets and the last two left alive perform a HeroicSacrifice to make this happen]].
* ''Anime/HugttoPrettyCure'' has this being done on ''both'' fronts. BigBad George Cry travels to the past in order to stop time to preserve everyone's happiness, [[spoiler:as not only does he reveal that Humanity was so struck with grief that they were unable to progress anymore, but his wife, the Future Hana Nono, became a victim of her own despair.]] This leads to Hugtan[[spoiler:/Cure Tomorrow]] and Hariham Harry to travel back into the past as well, encountering Hana to make a new Pretty Cure team to stop the Dark Tomorrow Company from freezing time and robing everyone of their future.
* ''Manga/GirlsGoAround'':
** The reason for the time-loops occuring. The creator made a decision and is regretting it, wondering if it was the right choice to make. The loop continues, until the regret has been dealt with.
** Turns out that Chihiro created her own time-loop [[spoiler:to keep Kyousuke from committing suicide on the day of graduation in three years]].
* ''Manga/TakopisOriginalSin'': Done multiple times by Takopi throughout the story:
** Takopi uses the power of the Happy Camera to prevent [[spoiler:Shizuka's suicide]] (which he succeeds at), as well as attempt to prevent Chappy getting sent away (which he fails at).
** [[spoiler:After becoming friends with Marina, Takopi decides to go back to make sure her future isn't miserable... by killing Shizuka, the "source" of her problems.]]
** [[spoiler:In the end, Takopi uses the last of his power to turn back time far enough and help the kids start reaching out to each other, at the cost of his own life.]]
[[/folder]]
Episode or Character Plots
[[folder:Episode or Character Plots]]
* ''Manga/FairyTail''
** Ultear's rationale in a nutshell. She’s willing to commit most any and all atrocities because if she succeeds, she’ll unlock TimeMaster magic that can just undo all the harm it took to reach her goals. [[spoiler:It takes the harsh realization that her "goal" could have been achieved [[PoorCommunicationKills if she just talked things out with her mother rather than assumed the absolute worst from a glance]] to realize how badly she fucked up and become TheAtoner.]]
** In the Grand Magic Games arc, [[spoiler:the Lucy from the BadFuture wants to stop the opening of the Eclipse Gate that would release an army of 10,000 dragons from the past to devastate the world and kill nearly everyone. Things get complicated when it turns out there's a Rogue from ''another'' BadFuture where she succeeded, but Acnologia took over the world and killed nearly everyone, so he wants to use the dragons to kill Acnologia and rule the world. On top of ''that'', Ultear attempts to invoke a DangerousForbiddenTechnique that would sacrifice her own lifespan to stop the dragons, but is only able to turn back time for one minute. Luckily for everyone, that one minute gave everyone temporal CombatClairvoyance and most of them were ''dying'' in that time frame, letting them turn the tide of battle.]]
** The final arc reveals [[spoiler:this is [[BigBad Zeref's]] final master plan to finally be free of his cursed immortality. By using the infinite magic of Fairy Heart, he will cast the Neo-Eclipse, which would overwrite the timeline by [[MentalTimeTravel sending his memories to his past self]] some 400 years ago and giving him all the information needed to both prevent being cursed by the gods by saving his brother Natsu from dying and no longer searching for the secrets of life and death, and to kill [[WorldsStrongestMan Acnologia]] before he becomes an unstoppable juggernaut. Since Zeref and Acnologia are such integral parts of the world's history, the present-world as it's known would be RetGone if it worked.]]
* In the ''Manga/NegimaMagisterNegiMagi'' manga, this is Chao Lingshen's motivation for messing around with her great grandfather's childhood, although whether she had an absurdly complicated {{plan}} set up, or was simply playing XanatosSpeedChess as her alterations made foreknowledge less useful is never made clear. She actually fixed the problem she went back to solve with the changes wrought by her first trip, but later makes a second one to tie up a loose end or two before the CosmicDeadline.
* Subverted in ''Anime/DragonBallZ''. Future Trunks also attempts to set right what once went wrong, but he does this in a timeline not his own: since in DBZ every timeline counts as another dimension, any changes made in the current time will not directly affect Future Trunks' past or future. He still wants to help out, hoping to create at least one peaceful world, and to return to his own time strong enough to finally stop what he wanted to prevent.
** Played straight in ''Anime/DragonBallZResurrectionF'' and ''Anime/DragonBallSuper''. After Frieza [[EarthShatteringKaboom destroys the Earth to kill Vegeta]], Whis rewinds time three minutes to give Goku a second chance.
* In ''Manga/JojosBizarreAdventureDiamondIsUnbreakable'', BigBad [[SerialKiller Yoshikage Kira]] gains his TimeMaster power "Bites the Dust" and uses it to successfully [[HeroKiller kill off the entire main cast]] with his stepson [[KidHero Hayato]] as the catalyst (making him a ''literal'' TykeBomb). Thankfully Hayato manages to undo it by tricking Kira into revealing himself in front of [[TheHero Josuke]], forcing him to deactivate it to defend himself before it can take effect in the present.
* A great part of the ''LightNovel/HaruhiSuzumiya'' LightNovels deals with Kyon trying to rectify past events in order not to let Haruhi's powers go haywire. Although he travels back in time mainly to set Haruhi off so that she'd create aliens, time travellers and [=ESPers=], and to fix up the events on December 18th. On that day, there's a point in time where there's 3 Mikurus and 4 Kyons. December 18th was only because of ''Disappearance'', and to fix what Yuki did.
* ''Manga/YakitateJapan'': Kazuma's last bread of the second TournamentArc is so amazingly delicious, it ''[[SugarWiki/MomentOfAwesome sends the judge back in time to]] {{retcon}} [[SugarWiki/MomentOfAwesome his own mother's death]]''.
* This is the goal of ''Anime/YuGiOh5Ds'' BigBad Z-One. However, Z-One is different than most in that he is willing to do anything, [[WellIntentionedExtremist no matter how immoral]] to meet this goal. The plan involved causing Zero Reverse, a disaster that killed thousands, and he was willing to murder anyone whom he felt was in the way. [[spoiler:In the finale, Yusei manages to surprise him completely, summoning Shooting Quasar Dragon as his ultimate card (Z-One had expected "Cosmic Blazar Dragon", the card that the Yusei in his timeline used as such), and in he end, it is heavily implied that Yusei's is able to prevent the BadFuture using much less drastic means.]]
* ''Anime/PokemonTheSeriesRubyAndSapphire'' season nine episode "Time Warp Heals All Wounds" sends May, Meowth and Squirtle back in time to prevent a man unknowingly leaving his pregnant girlfriend. May finds a lost necklace belonging to the woman, but oddly, no real explanation is given for the time travel.
* The 12th Pokémon movie ''Anime/PokemonArceusAndTheJewelOfLife'' has [[OlympusMons Arceus]] attempt to destroy humanity after it was betrayed in the past and Dialga sending Ash and his friends back in time to prevent it from happening while trying to hold it off in the present alongside Palkia and Giratina.
* Towards the end of the first ''Anime/TheSlayers'' movie, Lina goes back in time to help Rowdy defeat Joyrock when he first arrived on Mipross Island, before he became as strong as he was in the present. Of course, this has a horrible side effect from Lina's perspective - since she defeated the demon decades before she was hired to defeat him, she ''didn't get paid''.
* Discussed, but ultimately averted in ''Manga/MissKobayashisDragonMaid''. Lucoa offers to rewind time for Ilulu to before her HeelFaceTurn so she can undo her attempted destruction of the city and ease her guilt, but Ilulu turns down her offer on the grounds that it would also undo everything that Kobayashi had done for her.
* ''LightNovel/DateALive'': Kurumi's goal is to get enough power to travel thirty years back into the past to [[spoiler:kill the first Spirit, who was responsible for making Kurumi herself into a Spirit and an unwitting serial killer]]. Additionally, her power is also used (by herself and by others) to solve other problems, including [[spoiler:Origami's [[SuperpoweredEvilSide Inversion]] and Shidou's deaths.]]
* In the third ''Anime/TenchiMuyo'' OVA series, [[spoiler:once finding out about who the avatar of their universe's God was, Tokimi, Tsunami and Washu decide to reset time so that the avatar, Tenchi, can grow into his powers better and the damage caused by Tokimi creating Z is undone. However, since Z was the catalyst behind the third OVA series, Noike makes sure the altered message from Mihoshi gets sent so that she can come and join the gang.]]
* ''Anime/RebuildOfEvangelion'' gives the franchise its [[EarnYourHappyEnding long-overdue happy ending]] by [[spoiler:having Shinji use [[PhysicalGod the power of Instrumentality]] to undo Second & Third Impact and write the Angels out of mankind's history]].
[[/folder]]
