History Fanfic / ThisGoddessMustBeCrazy

* KickTheSonOfABitch: Many readers are more than happy to read that [[spoiler: Alucard]] helped Tanya kill Being X for all his actions against her. He most certaintly deserved it, especially considering he's the one that started it.

* FlatEarthAtheist: Aizawa was already this. But upon hearing that ''Aqua'' is a Goddess, he claims he'll be this again with Kan agreeing as he states Naofumi is a jackass and acts like a rabid dog.

Later on, the story involves other worlds such as ''Literature/ReZero'', ''Literature/Overlord2012'', ''Literature/TheSagaOfTanyaTheEvil'', ''Literature/HaruhiSuzumiya'', ''Literature/TheHeroIsOverpoweredButOverlyCautious'', and other minor worlds.

* AdaptationPersonalityChange: Surprisingly, ''Bakugo'' gets this. In his adventure he learns things that affect his own personality. While he still swears, is crass, and is as rude as in canon, he now sees the power of teamwork and obeys Iris-somewhat reluctantly-when he usually doesn't listen to people. He also showed anger when he thought the Kazuma Gang were enemies, thinking Izuku had been replaced by an impostor.
* AdaptationRelationshipOverhaul: [[spoiler:Izuku and Mei]] get married. Uraraka and Izuku spend enough time apart that when they reunite, they decide to just be friends. Kazuma and Megumin's canon relationship expends, and even apart the two clearly care for one another. Oddest of all perhaps, is Darkness and Tokoyami's budding romance.

* AscendToAHigherPlaneOfExistence: After Aqua, Eris, and the Kazuma Gang are reduced to mortals, during their time off it's suggested that to stand a better chance at facing Ainz and his forces, Aqua needs to be a Goddess again. Thus Kazuma and Izuku decided to have her become an idol where the crowd's cheers and donations and offerings will give her power.
** Funningly, Eris and Megumin ''don't'' wish to be Goddesses again. The former as she was once a human and wants to find love, and the latter because she wants to [[spoiler:have sex with Kazuma]].

* AllOfTheOtherReindeer: In the Heavens there are numerous Divisions such as Comedy, Horror, Shounen, and so on. Out of all of them, Comedy, run by [[spoiler:Haruhi Suzimya]], is considered the lowest of the bunch. It's a big surprise to the other Divisions that [[spoiler:they're the only ones that can stop Ainz and his gang due to circumstances]].

* AntiClimax: During a mock battle between many students to see they're new skills like Iris, Yunyun, and others, the game they play is Capture the Flag. With Yunyun's team vs Aqua's, and the fights between being rather epic, particularly with Iris vs Izuku. Yunyun's team wins as Kazuma, on Aqua's team, gave the flag to Megumin for her panties. A anti climatic battle indeed.
* AlienInvasion: What All Might and Nezu believe they have to prepare for as Nazerick ''will'' come eventually, and must prepare their world and the students.

* AntiHero: Downplayed. Kazuma tries to paint himself as this. He claims that he only cares about protecting his friends and family, and everybody else he considers NPC's. He even goes so far as to say he wouldn't care if Kaiser Fred or the others were killed and zombified by Nazerick. Tokoyami sees through this as while Kazuma may cherish his friends and family more than others, Kazuma obviously could have easily left the regular people to their fate by the Tomb's hand. Time and again, Kazuma continued to help others even though they weren't his friends. Only moments later, Kazuma even attempts to save a regular police officer who was guarding him in jail when he believed a demon was nearby and would have killed the man.
* AntiMagic: Demurige uses this to his advantage at times. While it strips him and his allies of levels and World Class Items, it takes all the enemies magical power leaving both sides to fight as they are. Or in Demuirige's case, summoning Tanya's own troops with guns-which don't rely on magic-to kill those who now can't defend themselves. It has killed many people leaving many Gods helpless including Eris who nearly dies along with Iris and the others. However, it only works on ''magic''.

* AwLookTheyReallyDoLoveEachOther: Aqua hates what Wiz is because she is a perversion of the Gods will, and that she will become a true Litch one day. But, she admits when asking [[spoiler: Kin Kai]] for help that she admits she was a good Litch, and is willing to bring her back to life.

** Ms. Joke being in U.A. despite her not historically having a low opinion of UA and admitting to being confused why she's there.

* BabiesEverAfter: During [[spoiler:Komekko's]] stay in Belzerg for 200 years, she gets married or at least did it with a person, and had ''many'' kids and grandkids. They are the last of the Crimson Demon Tribe.
* BadassCrew: Due to the looming threat of all Gods being ''annihilated'', [[spoiler: King Kai of Dragonball has Goku]] see if he can gather [[spoiler: Naruto, Luffy, and later on Saitama, the One Punch Man]] along with others to save the multiverse, otherwise face the end of the Age of Gods.
* BalanceBetweenGoodAndEvil: When All Might and Kazuma meet King Kai, the God tells them that Gods create worlds which includes heroes. When the Number 1 Hero then questions about where villains come from, and a possible 'Dark' Aqua, King Kai admits where there is creation, there is destruction. Thus where the Dark Gods come in with their own beings. Though Alucard, a Dark God, is ruining the balance.
* BigBad: [[spoiler:Ainz Ooal Gown of Overlord]] is the big bad of the series, having destroyed numerous worlds and seems to have no humanity left. Helping him is [[spoiler:Tanya the Evil]]. Later on, upon seeing the My Hero Academia world is open, he plans on creating a BigBadEnsemble, and using its strongest villains to destroy their own world, then continue on his multiversal rampage.

** Aqua can't stand seeing people hurt, and wants to heal them. When she sees her followers are reluctant to aid the poor, she berates them, then threatens to sic Megumin on them.

** The death of [[spoiler: all her followers]] and other innocents sends Aqua, and ''everybody else'' into a rage, with them all vowing to destroy[[spoiler: Ainz]] for his crimes.

** Wiz from Konosuba ''hates'' whenever humans are eaten, and instantly killed the monsters doing the deed in Axel by freezing them to death. When she learns of Eri though, she shows her ''inhumane'' side showing how slowly she's slipping into becoming a lich.

* BreakTheCutie: Iris had to see her father and brother die, her citizens killed, her retainers murdered as they saved her, and those she knew well like Dust killed off. Her entire world then ruined and turned into a nightmare for humans. Yeah, she was pretty upset for a while after all this.

* BullyingADragon: When Tanya tries making a deal with Overhaul and his group, he doesn't believe her words much about the Gods and taunts her. She shows him her memories revealing just how much of a ''monster'' she is, and how dangerous she is compared to him. He agrees to work with her for his goals and immortality under a magical contract that will punish him greatly if he betrays them.
* TheCameo: The [[spoiler: Subaru Gang]] at last show up, living with Kazuma in the same apartment with other dimensional people. He is seen with [[spoiler: Felt, Rem, Ram, and Emillia]].

* CapitalismIsBad: Aqua thinks this. While she doesn't mind making money, when many suggested singing for cash, she refuses as she believes art is a free form, contrast to Eris, who was the Goddess of Fortune of luck ''and'' money, who wanted to use Aqua's talent to make money. In her eyes,s he's DoingItForTheArt.

* CharacterDevelopment: Many characters have this during their time in other worlds such as Bakugo, the Kazuma Gang, and a few others. Mineta also gets this as he's no longer a pervert, or at the least not as one as he used to.
* ClingyJealousGirl: When Megumin believes Kazuma is with Yunyun, she angrily states Yunyun better not make a move on Kazuma, and Kazuma not to fall for temptation. Having also been annoyed that she can't have proper [[spoiler: sex]] with him in the heavenly realm. Also gets mad when a grown-up [[spoiler: Iris]] comes and hugs Kazuma and states he should have married her. She's not pleased.

* CombatPragmatist: What Tanya is as she does thing efficiently and without fooling around. Thus why she's such a dangerous threat.

** Nazerick deals these to almost every single world they visit, with only a few people capable of fighting them from Comedy Division.
** When the Kazuma Gang battles [[spoiler:Death Arms, Woods, and Backdraft]], while they're good the Kazuma Gang fights a bit better due to having actual experience with real villains.
** On Belzerg, Eris, Iris, Bakugo, and others meet Eris's boss from Upper Managment, Koizumi. He easily deals with them, even Bakugo who didn't expect it.
* DarkerAndEdgier: While this story does have the good moments, laughs, and joy, by no means is it all sunshine and rainbows. Death, massacre, torture, and genocide are all involved. The Kazuma and Izuku gangs are facing real evil equal or ''above'' All For One and Tomura.

* DealWithTheDevil: Tanya loses all her allies, barely survives the war, and committed many war crimes. Then Being X comes and forces her hand when he controls [[spoiler: Visha]] and meets [[spoiler: Alucard]] who allows her to meet Ainz. She makes a deal with him to work with him to save [[spoiler: Visha]] which leads to her BigBadSlippage.
** Eris of all people does this. Despite being a KnightTemplar and wantint to kill Wiz and Vanir, after the deaths of many she decides to make a deal with Vanir to one day help out Belzerg which he agrees to. While she isn't happy about it, she'd rather do a EnemyMine if it means saving her people. In return, she'll turn Wiz human.
* DefeatingTheUndefeatable: For ''centuries'' Nazerick has been the InvincibleVillain, [[spoiler: due to facing the Comedy Division of the multiverse]]. Killing many Gods, destroying countless worlds, and killing heroes while torturing billions and never having a serious battle sans the Overly Cautious Hero and a few others. Thanks to Izuku, Kazuma, Aqua, and many others, at long last the heroes gain [[NotSoInvincibleAfterAll an actual victory]] for once, to everyone's shock, even Nazerick. The list of their first losses include:

** Aqua still away from there clutches and eluding them, much to their anger.
* DeathSeeker: WordOfGod[[https://forums.spacebattles.com/threads/this-goddess-must-be-crazy-my-hero-academia-konosuba-crossover-with-a-flavoring-of-isekai-quartet.853324/post-68616409]] states that [[spoiler: Sebas]] held back in the Chapter 17 fight, and was [[TheWorfEffect not at his best]] as centuries of killing innocents wore him out. He was hoping he would die, giving the heroes a chance to win.

* DyingAlone: What Aqua fears most, and when the Chief takes away her Goddess title and sends her away to be mortal, she cries not because of that, but because she believes that she'll never see Kazuma and the others again.

* DyingRace: Vanir tells All Might that Comdey Division had thousands of Gods once. But because of Ainz and his forces, there are only two dozen Gods in Comedy left.

* EvilerThanThou: What Nazerick is as a whole to every enemy the Kazuma Gang has faced. Even the Devil Kings of other worlds seem kinder in comparison. They're cruel, powerful, and have abilities beyond even most gods. They can revive themselves, they don't make stupid mistakes, show no mercy, and are pragmatic and plan for everything. Even after they face their first loss in centuries, they'll simply review their mistakes and ensure they don't make them again.

* EveryoneHasStandards: Many people, be it on the side of good or even ''evil'', from jerks to nice people, all find what Nazerick does to be appalling as it seems relatively pointless to be this cruel. Even some of the jerk Gods in the Divine Realm feel what Nazerick does is to much.

* FadingAway: Aqua states this happens to all Gods and Goddesses, and will happen to her one day. She didn't mind, until she became friends with Kazuma and the Gang. Now she wishes to cherish her time with them.

* FakeMemories: Kan, Aizawa, Ms. Joke, Nezu, and All Might all realize that they're memories of accepting new students from places that don't exist and Ms. Joke joining are all fake. Making them realize ''something'' or ''someone'' affected them.
* FlatEarthAtheist: Aizawa was already this. But upon hearing Aqua, ''Aqua'' is a Goddess, he claims he'll be this again with Kan agreeing as he states Naofumi is a jackass and acts like a rabid dog.
* FriendlessBackground: Mei admits she had this due to people thinking she's weird, her anti-social skills, and ignoring social interactions to work on her inventions. She admits that she's glad she has Izuku and the others to be her friends.
* GoodIsDumb: Aqua is one of the most nicest characters there is. And while she is a bit narcissistic and annoying, she genuinly doeswish to help her friends. Too bad she's not very bright.

* GodNeedsPrayerBadly: Aqua and Megumin rely on their followers to give them power. Aqua needs them for all her spells for most part, and Megumin needs prayer to use more Explosion spells compared to her old life. In return, they give their followers knowledge and power.

* GreaterScopeVillain: [[spoiler: Ainz and Tanya]] are two of the main antagonist with the former starting a multiverse conquest to kill all Gods and take full control. ''However'', this only happens because [[spoiler: Alucard]] gives back their memories, [[spoiler: which he tampers with]] of the Isekai Quartet, and allows them to travel across worlds to spread devestation. His goals being unknown at the moment.

* ItsAllMyFault: Aqua thinks this when it comes to light [[spoiler: Ainz]] only came to the Konosuba world to get her, and killing her friends Kazuma and the others. Everybody reassures her it's not her fault as the Tomb would have found their world eventually. Uraraka states the only thing she's at fault...is not finishing [[spoiler: Ainz]] off sooner. Luckily, she and the others will help in finishing the deed.

* KarmaHoudiniWarranty: In canon, Bakugo more or less got away with his bullying and torment of Deku with ease and EasilyForgiven, but later does try to atone a bit in the later chapters. When he died in this story, Yunyun shows that for being a bully, a tyrant, mocking weaker people, and telling his only friend to die, he would instantly go to hell or if reincarnated, be a dog and not even a mid-sized one. He's not happy.

* LaserGuidedKarma: The bosses Izuku and Kazuma's groups face are the [[spoiler: Pleiades Battle]] Maids from the Tomb. Maids who show no guilt and sadistically enjoy killing humans and constantly treat them as trash and weaklings who deserve their fate. They're killed by humans much to readers satisfaction.

* LoopholeAbuse: While upset she can't do the deed with Kazuma, Megumin decides to do ''something'' with him to at last satisfy her urges. Only holding off from actually doing [[spoiler: vaginal sex]] as it will weaken her army but vows once the wars done, she'll do it. Later Inverted as [[spoiler: Upper Management]] don't care about technicalities. Were it not for them doing good in killing the enemy, Smith would have taken away their immortality. Needless to say, Kazuma and Megumin do the deed the moment they're alone again.

* MultipleEndings: Nighteye tells the Prime Minister and other people that he can see the future...and it isn't good. Explining that Ainz is coming, and that most ends he sees are bad with many dead or go through hell as he viewed it. However, he does state that when someone makes contact with [[HopeBringer Aqua]], then its avoided.

* MyGodYouAreSerious: When All Might and Nezu tell Aizawa, Kan, and Ms. Joke about the students going to an alternative world and that a great evil will come, they don't believe it as think it's a joke. Their silence and proof of All Might's wounds make them realize their serious.

* NayTheist: Naofumi is this as when he first met Aqua, he instantly questioned if she was in league with Ainz. Having shown an anger for Gods in general, and justified as he states he had to fight them for years in his home.

* NiceJobFixingItVillain: Being X decides to troll Tanya by taking control of Visha just because she survived all his tests and wouldn't bow to him. This causes Tanya to go to [[spoiler: Ainz]] and soon, kill off his followers we're centuries from now, Tanya will be the [[spoiler: Godslayer]].

* NothingIsTheSameAnymore: Upon going back in time, Izuku and Kazuma see things have changed because of Upper Managment. Kazuma and his allies are in the MHA world with Yunyun and a grown Iris with them, Aqua and Eris now mortal. For Izuku, Bakugo acting strange and somehow knowing Yunyun and Iris with Mei in the Hero Course now.
* NoodleIncident: [[spoiler: Bakugo]] is implied to have also gone through an adventure like Izuku as he acts strangely when seeing the Kazuma Gang with Iris, Chris, and Yunyun knowing him. Also something about a farm.

* PersonOfMassConstruction: Aqua is this naturally. And when punished to rebuild part of the training grounds, she shows Cementoss that said punishment was pointless for her as she ignorantly makes a good building to hos shock under an hour.
* PhysicalGod: What Aqua is. Kazuma, Darkness, and Megumin kinda count. Though at best, Kazuma admits they might qualify as Demi-Gods as they were mortal before. [[spoiler: In Season 2, Aqua, Eris, and the Kazuma Gang are stripped of said title and are mortals]].

** Happens again in [[spoiler: Chapter 32 with Bakugo, Kommeko, and everyone including Iris dead]]. And while they did drive Demurige away, Belzerg and the planet is still full of monsters. But thanks to Haruhi, until Iris gets back from the My Hero Academia World her world is on pause.

* RageAgainstTheHeavens: Once [[spoiler: Alucard]] discovers what most Gods are really lie, his pedestal of them is forever ruined and ''despises'' them all for their constant 'playing' of humanity. He wishes to gather those like [[spoiler: Tanya the Evil]] to help out and end the Gods reign once and for all.

* ReluctantWarrior: When Iris wants to go back to Belzerg, Kazuma is less than reluctant as everyone he knows is gone, and enjoys the MHA world. After Iris {{Bitch Slap}}s him and leaves, Kazuma then hears from Megumin she's going if only to see her little sister who's still alive and Kommeko's new family. Kazuma then joins in for her sake.

* UnderestimatingBadassery: [[spoiler: The Overlord Cast]] does this to ''all'' their enemies. Seeing them as weaklings due to their inherit strength, and planning to kill those who actually do threaten them. This causes their downfall though numerous times against Izuku's gang and Kazuma's gang, particularly the latter as they were unaware of them becoming more powerful without the RPG rules. [[spoiler: Sebas]] and the [[spoiler: Pleiades Maids]] all show shock when they are defeated, and ultimately dead by the heroes hands.

* UnskilledButStrong: Haruhi is one of the most powerful Gods of all, ascending by pure power to Godhhod and in her words, ''runs'' the energy of the entire Comedy Division. However, against those with equal power or capable of fighting back, then she isnt as good with [[spoiler: King Kai from Dragonball]] admitting she's still a young inexperienced Goddess.

* WrongGenreSavvy: [[spoiler: Haruhi talks to Iris on ''why'' the Comdey Division Gods are failing against Ainz. Explaining that while the S.O.S Brigade are powerful, that's only in their realm of domain. Mentioning that Belzerg, despite having powerful warriors like Iris, is still ultimatly a comedy base world. Nazerick and Ainz however, comes from the Horror Division which Haruhi has no control over. Doesn't help Ainz himself and Nazerick were 'born' with already OP powers, making the fight against them super difficult.]]

** Despite being one of the kindest undead, Wiz has no choice but to send humans to their deaths to fool Demuirige. Because of this, after making a deal with Eris, in return for helping create a rebellion, Wiz wishes to be human again.

* AGodIAm: Haruhi proclaims herself as this in her Interlude, though is quick to correct she's the God of ''Comedy'', not the Christian God.

* AllOfTheOtherReindeer: In the Heaven's their are numerous Divisions such as Comedy, Horror, Shounen, and so on. Out of all of them, Comedy run by [[spoiler: Haruhi Suzimya]] is considered the lowest of the bunch. Which is why it's a great twist to the other Divisions that they're the only ones that can stop [[spoiler: Ainz]] and his gang due to circumstances.

** Funningly, Eris and Megumin ''don't'' wish to be Goddesses again. The former as she was once a human and wants to find love, and the latter because she wants to have [[spoiler: sex]] with Kazuma.

Later on, the story involves other worlds such as ''Literature/ReZero'', ''LightNovel/Overlord2012'', ''Literature/TheSagaOfTanyaTheEvil'', ''Literature/HaruhiSuzumiya'', ''LightNovel/TheHeroIsOverpoweredButOverlyCautious'', and other minor worlds.

** There are gods above even Aqua, known as Upper Management. [[spoiler:Turns out, it's the SOS Brigade from ''LightNovel/HaruhiSuzumiya''' who run the Comedy Division of the Divine Realm.]]

** Once upon a time there was a world that was supposed to host a simple "slice of life" story. Then Suzumiya Haruhi was born there as ''the'' Goddess of Comedy, and [[LightNovel/HaruhiSuzumiya the rest is history]].

** It's said all but in name that the enemies Izuku and Kazuma face are from [[spoiler:''[[LightNovel/Overlord2012 Overlord]]'' . Confirmed in chapter 14.]]

* AscendToAHigherPlaneOfExistence: After Aqua, Eris, and the Kazuma Gang are reduced to mortals, during their time off it's suggested that to stand a better chance at facing Ainz and his forces, Aqua needs to be a Goddess again. Thus Kazuma and Izuku decided to have her become an idol where the crowd's cheers and donations and offerings will give her power.
** Funningly, Eris and Megumin ''don't'' wish to be Goddesses again. The former as she was once a human and wants to find love, and the latter because she wants to have [[spoiler: sex]] with Kazuma.

** Kazuma invokes this by talking about Baman, Mr. Freeze, and the Terminator. Sadly in the MHA world, nobody even knows of such references with the closest they have is a hero named Batman but being completly different.

** It's said all but in name that the enemies Izuku and Kazuma face are from[[spoiler: ''{{LightNovel/Overlord}}'' . Confirmed in chapter 14.]]

* MagnificentBastard: [[spoiler: Alucard]] is this and with spades. His time in the heavens made him create a plan so well thought out that by the time anybody noticed, it was to late to stop it. The Overlord Gang and Tanya, yep, he fooled them and secretly manipulated them to do his bidding.

Later on, the story involves other worlds such as ''LightNovel/ReZero'', ''LightNovel/Overlord2012'', ''LightNovel/SagaOfTanyaTheEvil'', ''LightNovel/HaruhiSuzumiya'', ''LightNovel/TheHeroIsOverpoweredButOverlyCautious'', and other minor worlds.