History NiceJobBreakingItHero / AnimeAndManga

* ''Literature/{{Bakemonogatari}}'': Due to impure motives, Koyomi usually makes peoples' problems worse, moreso the more he gets directly involved in trying to fix them. Namely, while he appears heroic, he's actually more interested in sacrificing himself for others than actually helping them.
** In Koyomi Vamp, he saves a dying vampire simply because he's suicidal and thinks it's a good way to die. When she recovers fully after he finishes defeating the HeroAntagonist group after her, he realizes he just revived what may be the most powerful being on the planet, which eats people at least once a month.
** With Kanbaru his suicidal tendencies make him decide that the best way of solving her problem is just to get killed by her so that she'll get what she wants. His girlfriend has to step in and point out that this won't get Kanbaru what she wants, causing her to give up. Later, it turns out that Koyomi's poor handling of the situation has convinced Kanbaru that deep down she's a murderer who was simply stopped before she could commit a crime.
** With Nadeko he tries to help her without having any idea what she's doing and her curse ends up more dangerous as a result. When the problem is "fixed" it still results in one of the people who cursed her getting attacked by the snake, even though he probably didn't really know it would work. He also fails to address her misdeeds in this arc, simply ignoring that she butchered a bunch of innocent animals in an attempt to cure herself when she was actually perfectly safe. [[spoiler:This isn't the only cause for the Nadeko Medusa incident, but it's just another time people give her a pass because she's cute.]]
** [[spoiler:Even after freeing her of the snake curse, Koyomi is unable to tell Nadeko he doesn't like her ''that way'' because he's [[AllLovingHero just too nice]] ([[ObliviousToLove or just too oblivious]]), and fails to see Nadeko growing more and more jealous. Down the line this leads to Nadeko becoming a god and nearly killing both him and Shinobu, and they are only allowed to live because Senjougahara talked Nadeko out of it almost the same way she did with Suruga. Even after she spares them, Nadeko threatens Koyomi and Senjougahara's lives, and all this happened because he just couldn't take a chance to hurt her feelings. After being able to save their lives unlikeliest of situations, [[ConMan Kaiki]] is the one to inform Koyomi that caring about others sometimes can cause more problems than it helps.]]
** When he assists Tsubasa with her demonic cat problem, he ignores the obvious emotional issues that caused it and urged her to keep bottling up her emotions, causing two more incidents as she tried to live up to his image of her despite the obvious cause of her problems. Not only that, but in the first incident he nearly ''kills'' her thanks to his foolish plan to forcibly separate her from the meddlesome cat. Even if his plan had actually worked, she would have been responsible for the murder of the guy she liked.

* ''Literature/ACertainMagicalIndex'':
** In episode one, Touma destroys Index's magical MadeOfIndestructium cloak to prove he has AntiMagic. This leaves her defenseless and she becomes grievously wounded later.
** During the Sisters arc, Touma [[spoiler:fights Accelerator, which turns out to be the boost he needed to reach Level 6]]. Thankfully subverted when Touma managed to fix the problem [[spoiler:by knocking out Accelerator before he manages the shift]].
** In ''New Testament'', Ollerus tries to halt Othinus's plans for absolute power by using a transformation spell to remove her Magic God powers, making them fail 100% of the time instead of the usual 50%. [[spoiler:Othinus just laughs and reveals that Ollerus basically just handed her omnipotence on a silver platter: if anything she tries is going to fail, then she just has to ''fail at failing'' and can pretty much do whatever she wants.]]
* ''Manga/ACertainScientificRailgun'': Misaka finishes off the overpowered [[spoiler:Kiyama-sensei]], bringing an end to the Level-Upper arc, except now the [[spoiler:entire network suddenly becomes unstable without her to control it and it's just given birth to a weird . . . fetus . . . thing]] that's heading for a ''nuclear reactor''. And the only person who knows what's going on is out for the count.

* ''Literature/DirtyPair'': Frequently implied to occur whenever the titular characters are on the job (it's the reason for their EmbarrassingNickname), but one OVA episode spells it out plainly. The Angels are investigating the mysterious deaths of several hundred mining employees on a planet run as a religious colony. They find that the religion's leadership has evolved into a murderous cult that, with the help of a ring of weather satellites, is capable of calling down Sodom-and-Gomorrah-style devastation in a specific location. After they destroy the cult's station in orbit, they assume correctly that the cult's reign of terror is ended. Unfortunately, the space station was also the control for the weather satellites and the weather satellites ''weren't'' just used for destructive purposes. The Angels look down from orbit and see about nineteen hurricanes beginning to form with no weather-control system left to prevent them.

* ''Literature/FromTheNewWorld'': Good job Education Board. By trying to kill [[ShrinkingViolet Mamoru]] in fear of him becoming a threat, you prompted him to run away which later leads to [[BetaCouple Maria]] joining him when she and the others try to bring him home, which leads to Saki and Satoru having to make a deal with [[TheStarScream Squeler]] to fake their deaths so they won't be hunted down by you and the other villages, which later allowed him to [[KilledOffForReal actually kill them]] so he could raise their child into a TykeBomb [[NoHoldsBarredBeatDown to kill all of you ten years later]] -- [[SelfFulfillingProphecy congratulations!]]

* ''Literature/TheHeroicLegendOfArslan'': Bahman was having ConflictingLoyalty after finding out that [[spoiler: Silvermask was the former prince Hilmes]]. But in his desperation to stop Kishward, Daryun, and the others from killing [[spoiler:Hilmes ]], he [[spoiler:blurted out that if they do, they will be extinguishing the royal line]] while in front of Arslan, emotionally shattering the poor boy's world. This also allows [[spoiler:Hilmes]] to escape in the confusion. Narsus was [[EnragedByIdiocy furious]], thinking to himself that he should cut Bahman down for such actions.
* ''Webcomic/HetaliaAxisPowers'': In the ''Running Away With Mr. Swe'' strip, [[NiceGuy Finland]] decides to follow [[GentleGiant Sweden]], who's fed up with Denmark's attitude and being controlled, and run away to live on their own. While he's at first glad that he's gotten away from Denmark, it doesn't take long for Finland to start mentally kicking himself for his spontaneous decision, considering the person that he ran away with has a FaceOfAThug and IcyBlueEyes. He's so terrified of Sweden that he decides he can't live with him and makes plans to run away in the middle of the night while Sweden is asleep, only to have his [[ThwartedEscape escape attempt thwarted]] by an unknowing Sweden himself.

* In ''Literature/LoveChunibyoAndOtherDelusions'', Rikka's family [[spoiler:hid her father's illness from her in order to protect her. Granted she was a child and probably would have had a hard time dealing with it. But his sudden death makes it very hard for her to accept it]].

* All over the place in ''Literature/TheRisingOfTheShieldHero''. Due to the fact that the Sword, Spear and Bow Heroes treat the world like a videogame, they end up causing more harm than good, and Naofumi is forced to pick up the slack and fix their messes. In order: Ren slays a dragon and forgets to dispose of the corpse, causing it to pollute the air of a nearby village (and later it resurrects as a [[DracoLich zombie]] for good measure); Motoyasu gives a starving village a magical seed, not bothering to read the runes warning that it's a cursed seed and was sealed because it only creates monster plants; and then Itsuki aids the rebel forces of a small kingdom to slay their king because he was heavily taxing his populace, only for the rebels to [[HereWeGoAgain heavily tax the populace again]] because they need the money to protect them from the waves. And this is all before [[spoiler: the infamous Spirit Tortoise incident...]] [[spoiler: that '''[[LeeroyJenkins they started in the first place]]''', thinking it was just a generic extra boss that they could take down with ease with their supposed [[DidntThinkThisThrough preparation]].]]

* In episode 2 of ''Literature/TheTestamentOfSisterNewDevil'', Basara tells Mio not to let anyone at their school know that they're living together, lest it cause a scandal. Unfortunately, after he introduces himself to her class after transferring there, the class rep, Yuki, gives him TheGlomp and turns out to be a childhood friend of his. This causes some jealousy in Mio, who then lets it slip that they're living together.

* In episode 4 of ''Literature/UnlimitedFafnir'', Tear getting a little angry in the auditorium and nearly destroying it causes the other students to be quite fearful of her as a result. Fortunately Yuu, Mitsuki, and Iris help her to open up more to her classmates and to control her power to avoid more incidents like that.
* ''Literature/WatashitachiNoTamuraKun'' has this in a romantic triangle situation where secondary characters end up accidentally hurting both females in the triangle and almost ruin the chances for anyone to end up in a relationship. Tamura's friend Takaura has been talking to Matsuzawa on the phone and telling her about Tamura's current activities, including his budding relationship with Souma. Hachiya, the well meaning school nurse and confidant for Souma, pushes Souma and Tamura to move forward faster in their budding relationship than they probably should be. While both of them are well meaning, their actions cause some serious anguish for the love triangle, although it seems to work out in the end.

** Though to be fair, [[UnwittingInstigatorOfDoom Saki]] should have probably stopped them from running away by directly bringing Mamoru back home when they found him in the first place.

** To be fair, the chances of it hitting not only a continent, but a major city at that, rather than splashing down in the ocean, are probably pretty slim. And splashing down in the ocean could've caused a tsunami that could've been even worse for far more people.

** [[spoiler:While Gendo has been preparing his own Instrumentality plan for years under the noses of his superiors, one that is arguably a little better than "genocide and hope for the best," Shinji accidentally triggers their original plan at the eleventh hour. Things get better -- again, arguably.]]

** While they can't be fully considered "heroes", the Marines in cause this following [[spoiler:The Whitebeard War. Their long, elaborate plan to kill Whitebeard worked and they also killed off the son of the Pirate King (Ace). The only problem is that in doing so, they horribly screwed up the power balance of the New World, causing several towns to get overrun by pirates. Also, since Whitebeard confirmed that One Piece existed with his dying breath, the piracy rates have practically DOUBLED. To make matters worse, Blackbeard managed to free some of the worse criminals in the history of the world, added them to his crew, and has now stolen Whitebeard's Devil Fruit, which is capable of causing untold carnage, before finally declaring war on the World Government. And to top it all off, the Elders decided to censor the escape of even more of the Level 6 prisoners, meaning they can do whatever the hell they want. So basically, they wound up screwing up the Entire World thanks to a horribly short sighted plan. Then the cover-up of the Level 6 prisoners' escape causes Fleet Admiral Sengoku to resign in disgust, leaving a secession crisis for who will lead the Marines. To settle this, a duel is held between Admirals [[GeneralRipper Akainu]] and [[ReasonableAuthorityFigure Aokiji]]. Akainu wins and Aokiji leaves the Marines. Thus, two of their four most powerful members are gone]].

*** Later in the manga, Yugi subjects a corrupt TV producer to a Penalty Game as punishment for trying to rig a game show Jonouchi is participating on to prevent him from winning the ¥1,000,000 jackpot (which Jonouchi intends to use to pay off his father's gambling debts). The Penalty Game, Mind on Air, causes the producer to rush out onto the game show set, insult the viewers and demand that they send him their money; the entire debacle causes the TV studio to declare bankruptcy before Jonouchi can cash in his check, making his efforts utterly pointless.

*** Later in the manga, Yugi subjects a corrupt TV producer to a Penalty Game as punishment for trying to rig a game show Jonouchi is participating on to prevent him from winning the ¥1,000,000 jackpot. The Penalty Game, Mind on Air, causes the producer to rush out onto the game show set, insult the viewers and demand that they send him their money; the entire debacle causes the TV studio to declare bankruptcy before Jonouchi can cash in his check, making his efforts utterly pointless.

*** Later in the manag, Yugi subjects a corrupt TV producer to a Penalty Game as punishment for trying to rig a game show Jonouchi is participating on to prevent him from winning the ¥1,000,000 jackpot. The Penalty Game, Mind on Air, causes the producer to rush out onto the game show set, insult the viewers and demand that they send him their money; the entire debacle causes the TV studio to declare bankruptcy before Jonouchi can cash in his check, making his efforts utterly pointless.

** The actual protagonists fall into this on occasion as well. Luffy's jailbreak at Impel Down let a bunch of inmates out of prison. Granted, it's reasonable to assume that a fraction of them were actually decent guys like Mr. 2, Jimbei, and the Newkama pirates, but the majority was made up of dangerous criminals. Also, Franky blew up the laboratory of the greatest scientist in the world. Twice. He saw the BigRedButton with the skull 'n crossbones on it and thought that it must be a pirate button.
** Sanji's surrogate father Zeff Baratie, [[ToughLove literally beat it into Sanji's head]] that a Real Man WouldntHitAGirl, even threatening to ''castrate him'' if he ever heard Sanji had hit a woman. Which, as Sanji's own female crewmate Nami [[LampshadeHanging has pointed out]], is a very ''stupid'' form of chivalry in a WorldOfBadass where Sanji repeatedly runs into {{Action Girl}}s: he has nearly ''died'' on several occasions due to refusing to fight in his own defense when confronted by a hostile female warrior.

* All over the place in ''Literature/TheRisingOfTheShieldHero''. Due to the fact that the Sword, Spear and Bow Heroes treat the world like a videogame, they end up causing more harm than good, and Naofumi is forced to pick up the slack and fix their messes. In order: Ren slays a dragon and forgets to dispose of the corpse, causing it to pollute the air of a nearby village (and later it resurrects as a [[DracoLich zombie]] for good measure); Motoyasu gives a starving village a magical seed, not bothering to read the runes warning that it's a cursed seed and was sealed because it only creates monster plants; and then Itsuki aids the rebel forces of a small kingdom to slay their king because he was heavily taxing his populace, only for the rebels to [[HereWeGoAgain heavily tax the populace again]] because they need the money to protect them from the waves. And this is all before [[spoiler: the infamous Spirit Tortoise incident...]] [[spoiler: that '''[[LeeroyJenkins they started in the first place]]''', thinking it was just a generic [[BonusBoss extra boss]] that they could take down with ease with their supposed [[DidntThinkThisThrough preparation]].]]

** [[spoiler:While Gendo has been preparing his own Instrumentality plan for years under the noses of his superiors, one that is arguably a little better than "genocide and hope for the best," Shinji accidentally triggers their original plan at the eleventh hour. Things get better. I guess.]]

* The ''Franchise/{{Patlabor}}'' TV series features a pretty epic one, with a simple HonorBeforeReason decision in an early throwaway episode snowballing into an increasingly deadly story arc that would dominate the later half of the show. Captain Nagumo is opposed to using the prototype Patlabor SRX-70 Saturn created by [[MegaCorp Schaft Enterprises]] because she knows they're going to use the motion data from the police's skirmishes to develop military mechs. All well & good, but because Nagumo threw the Saturn away, CorruptCorporateExecutive Utsumi decided to get the Patlabors' data another way, namely smuggling pre-production military Labors into Tokyo & causing havoc in the streets to draw the Patlabors out.

** Since Heero was the one who actually pulled the trigger to kill all the UESA leaders, you could say "[[IncrediblyLamePun Nice Job Breaking It, Heero]]."

* In ''Anime/FullmetalAlchemist: [[TheMovie Conqueror of Shamballa]]'', [[spoiler:Al opens the gate between his world and ours as the Thule Society does on our side in an attempt to rescue his brother, Ed. Though Ed escapes, it also allows the Thule Society to launch a full scale war on Amestris and nearly destroys the capitol city]].

* ''LightNovel/{{Bakemonogatari}}'': Due to impure motives, Koyomi usually makes peoples' problems worse, moreso the more he gets directly involved in trying to fix them. Namely, while he appears heroic, he's actually more interested in sacrificing himself for others than actually helping them.

* ''LightNovel/ACertainMagicalIndex'':

* ''LightNovel/DirtyPair'': Frequently implied to occur whenever the titular characters are on the job (it's the reason for their EmbarrassingNickname), but one OVA episode spells it out plainly. The Angels are investigating the mysterious deaths of several hundred mining employees on a planet run as a religious colony. They find that the religion's leadership has evolved into a murderous cult that, with the help of a ring of weather satellites, is capable of calling down Sodom-and-Gomorrah-style devastation in a specific location. After they destroy the cult's station in orbit, they assume correctly that the cult's reign of terror is ended. Unfortunately, the space station was also the control for the weather satellites and the weather satellites ''weren't'' just used for destructive purposes. The Angels look down from orbit and see about nineteen hurricanes beginning to form with no weather-control system left to prevent them.

* The entire plot of ''Manga/InuYasha'' is based on this. Kagome kills a demon that stole the Shikon Jewel and in the process shatters the aforementioned MacGuffin. This kicks off an incredibly drawn-out plot where the main characters have to fix the jewel and fight evil demons who want its power for themselves. Nice job breaking it, {{miko}}.

* In ''LightNovel/LoveChunibyoAndOtherDelusions'', Rikka's family [[spoiler:hid her father's illness from her in order to protect her. Granted she was a child and probably would have had a hard time dealing with it. But his sudden death makes it very hard for her to accept it]].

* Way to go, Manga/{{Nausicaa|OfTheValleyOfTheWind}}. In the manga version, you've saved your people, but you've also [[spoiler:doomed humanity by destroying the pure, corruption-free genes that have allowed humanity to survive.]] She believes in [[HistoryRepeats the natural cycles]], but what she fails to realize is that [[spoiler:there will BE no cycles for mankind if they're all dead]].

* The ''Anime/{{Patlabor}}'' TV series features a pretty epic one, with a simple HonorBeforeReason decision in an early throwaway episode snowballing into an increasingly deadly story arc that would dominate the later half of the show. Captain Nagumo is opposed to using the prototype Patlabor SRX-70 Saturn created by [[MegaCorp Schaft Enterprises]] because she knows they're going to use the motion data from the police's skirmishes to develop military mechs. All well & good, but because Nagumo threw the Saturn away, CorruptCorporateExecutive Utsumi decided to get the Patlabors' data another way, namely smuggling pre-production military Labors into Tokyo & causing havoc in the streets to draw the Patlabors out.

* ''Anime/PsychoPass'': Had the Sybil system, after capturing [[spoiler:Shogo Makishima]], restrained him when they tried to [[spoiler:convince him to become part of the system]], all the crap everyone had to go through in the second season might have been avoided.
** Hell, had the Sybil system never been invented -- [[StartOfDarkness half the latent criminals in the series wouldn't have even become criminals in the first place.]]

* ''Manga/MyHeroAcademia'': Nana Shimura's efforts to protect her son Kotaro from [[BigBad All For One]] were for [[AllForNothing naught]] as led to Kotaro with a bitter hatred for heroes and abusing his son Tenko for even thinking about being a hero. Eventually Tenko snapped and killed Kotaro with his awakened Quirk albeit at the expense of the rest of his family getting caught in the crossfire. [[FromBadToWorse And then Tenko winds up in the clutches of All For One anyway]] and is rechristened as Tomura Shigaraki. Had Nana told her son the truth about her career, her grandson wouldn't have become the monster with blood on his hands.

** Jiraiya's desire to give Sasuke a shot at killing Itachi in the hotel is understandable, but it takes all of three seconds for it to become apparent that he's [[CurbStompBattle absolutely no match]] for his older brother. It still takes him at least another five minutes, many broken bones, and a vicious mind raping to actually intervene. In fact, it's very possible that the ''only'' reason Itachi even resorted to Tsukuyomi is because he was waiting for Jiraiya to give him the excuse to flee, and nothing else was making him act. This loss was one of the biggest reasons for Sasuke's defection.

*** He abandoned his mission so that he could help Obito when they were kids, resulting in a crippled Obito ending up on Madara's doorstep setting off most of the plot.

* All over the place in ''LightNovel/TheRisingOfTheShieldHero''. Due to the fact that the Sword, Spear and Bow Heroes treat the world like a videogame, they end up causing more harm than good, and Naofumi is forced to pick up the slack and fix their messes. In order: Ren slays a dragon and forgets to dispose of the corpse, causing it to pollute the air of a nearby village (and later it resurrects as a [[DracoLich zombie]] for good measure); Motoyasu gives a starving village a magical seed, not bothering to read the runes warning that it's a cursed seed and was sealed because it only creates monster plants; and then Itsuki aids the rebel forces of a small kingdom to slay their king because he was heavily taxing his populace, only for the rebels to [[HereWeGoAgain heavily tax the populace again]] because they need the money to protect them from the waves. And this is all before [[spoiler: the infamous Spirit Tortoise incident...]] [[spoiler: that '''[[LeeroyJenkins they started in the first place]]''', thinking it was just a generic [[BonusBoss extra boss]] that they could take down with ease with their supposed [[DidntThinkThisThrough preparation]].]]

* In episode 2 of ''LightNovel/TheTestamentOfSisterNewDevil'', Basara tells Mio not to let anyone at their school know that they're living together, lest it cause a scandal. Unfortunately, after he introduces himself to her class after transferring there, the class rep, Yuki, gives him TheGlomp and turns out to be a childhood friend of his. This causes some jealousy in Mio, who then lets it slip that they're living together.

* In episode 4 of ''LightNovel/UnlimitedFafnir'', Tear getting a little angry in the auditorium and nearly destroying it causes the other students to be quite fearful of her as a result. Fortunately Yuu, Mitsuki, and Iris help her to open up more to her classmates and to control her power to avoid more incidents like that.
* ''LightNovel/WatashitachiNoTamuraKun'' has this in a romantic triangle situation where secondary characters end up accidentally hurting both females in the triangle and almost ruin the chances for anyone to end up in a relationship. Tamura's friend Takaura has been talking to Matsuzawa on the phone and telling her about Tamura's current activities, including his budding relationship with Souma. Hachiya, the well meaning school nurse and confidant for Souma, pushes Souma and Tamura to move forward faster in their budding relationship than they probably should be. While both of them are well meaning, their actions cause some serious anguish for the love triangle, although it seems to work out in the end.

* In the ''{{Manga/Berserk}}'' manga, Skull Knight manages to slash Femto from behind at the very moment of his apparent ascension, using his dimension-crossing sword to teleport and get the drop on him. [[spoiler:Unfortunately, Femto then redirects his strike towards the vortex of demonic power they are both standing on and uses its dimension-bending to bring the unholy nature of that place closer to earth, thus bypassing the walls between Seen and Unseen by folding time and space, resulting in the energies of the Unseen manifesting physically on Earth. You've brought about ''hell on Earth'', Skull Knight. Whoops. Guess that's what you get for bringing in sci-fi conventions into a medieval fantasy world!]]

* ''Manga/SnowWhiteWithTheRedHair'': Tariga started having a melt down after he realized that Touka had arrived but Tsuruba hadn't been seen as [[spoiler:it meant Tsuruba was likely dead]]. Unfortunately he reacted to this revelation by using a KnockoutGas on [[spoiler:Touka's]] guards in order to confront him and the heartless noble's BreakingSpeech worked wonders, with Tariga nearly stumbling from the room while leaving it unguarded, unlocked, and with the unconscious guards' weapons now handy for the villain.

* ''Literature/FromTheNewWorld'': Good job Education Board. By trying to kill [[ShrinkingViolet Mamoru]] [[AdultFear in fear of him becoming a threat]], you prompted him to run away which later leads to [[BetaCouple Maria]] joining him when she and the others try to bring him home, which leads to Saki and Satoru having to make a deal with [[TheStarScream Squeler]] to fake their deaths so they won't be hunted down by you and the other villages, which later allowed him to [[KilledOffForReal actually kill them]] so he could raise their child into a TykeBomb [[NoHoldsBarredBeatDown to kill all of you ten years later]] -- [[SelfFulfillingProphecy congratulations!]]

** The actual protagonists fall into this on occasion as well. Luffy's jailbreak at Impel Down let a bunch of inmates out of prison. Granted, it's reasonable to assume that a fraction of them were actually decent guys like Mr. 2, Jimbei, and the Newkama pirates, but the majority was made up of dangerous criminals. Also, Franky blew up the laboratory of the greatest scientist in the world. Twice. He saw the BigRedButton with the skull 'n crossbones on it and thought [[WhatAnIdiot that it must be a pirate button.]]