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[[caption-width-right:350: It's a MagicalGirl version of ''CodeGeass''! With evil plushies. And JoanOfArc. And an even crazier Mao. And [[Anime/MobileFighterGGundam Master Asia]]. What'd you expect?]]

''Code Geass: Nightmare Of Nunnally'' is an AlternateUniverse version of the original ''CodeGeass''. The story starts off the same way as the original right up until Lelouch first meets C.C. From there, Lelouch and C.C. are ([[NeverFoundTheBody presumably]]) killed in a nearby explosion. Nunnally, after hearing news of the explosion, heads over to the area and finds a strange doll with a Geass symbol on it. It speaks to Nunnally telling her that it's a "keepsake from her brother" and convinces Nunnally to make a Geass contract. She does, transforming herself into an ActionGirl and gains the ability to see into the future, along with a [[KatanasAreJustBetter katana wielding]], [[Anime/NeonGenesisEvangelion EVA]] {{expy}} Knightmare Frame.

Enter a new group of Britannian agents, the "Britannian Special Honorary Foreign Legion Irregulars"; and some shiny new powerups for others.

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!!''Code Geass: Nightmare of Nunnally'' contains examples of:
* ActionGirl: Nunnally, as well as Alice and the Irregulars. And Anya ([[spoiler: channeling Marianne]]).
* AmazonBrigade: The Irregulars.
* AntiHero: Zero is a type III.
* ArmorOfInvincibility: Lelouche's geass in this is no longer the power to make others obey, instead taking the form of a magical armor that manifests around in the likeness of his Zero suit (though extremely muscular). As long as the armor is active, he cannot die and is granted super speed and super strength. It's why he takes a much more active role in the fighting.
* ArrangedMarriage: Suzaku to Nunnally, [[spoiler:before C.C. killed Genbu]].
* ArrogantKungFuGuy: Suzaku sees Darlton as one during their mech duel, for fighting him to satisfy his own vanity.
* ArtificialHuman
* BadAss: '''''Zero.''''' Seriously, this version of him is so awesome, ''he fights Knightmares on foot.''
** And he can stop bullets by '''posing'''!
** In the last parts of the manga, [[spoiler:The Knights of the Round show that they can do the same thing.]]
** Heck, ''C.C.'' is BadAss. [[spoiler: And not only because she ''is'' part of Zero here - she did some action in flashback to the HundredYearsWar.]]
* BadAssNormal: Suzaku. All from above have superpowers. He doesn't need them.
* BadassLongCoat: Used a visual cue for [[spoiler: Alice's transformation into Nunnaly's knight.]] In the previous scene she wore her uniform in a cell and emotional wreck. In the next scene she's tall, proud, and wearing the long coat.
* TheBaroness: Cornelia, of course, but also ''Anya''. [[http://www.mangafox.com/manga/code_geass_nightmare_of_nunnally/v04/c019/4.html Seriously]].
* BecomingTheMask: Lelouch [[spoiler:succeeding his father and C.C. as the Demon King.]]
* BetterToDieThanBeKilled: Cornelia prepares to shoot herself in the head rather than be interrogated by Zero, before Suzaku arrives to save her.
* BigDamnHeroes: [[spoiler:Euphemia and Suzaku's rescue of Nunnally from Rolo.]]
* BittersweetEnding: [[spoiler:The world is saved from Charles and Marianne's AssimilationPlot and Euphemia abolishes the Pax Britannia and the other countries establish independence, but hatred in Britannia hasn't quelled and it's still enemies with most of the world (possibly barring Japan) and Lelouch spreads chaos and Geass because that is his role.]]
** The Void apparently wants to suck reality back into itself; so it uses the Demon King to war and cause Geass to make mankind destroy itself. [[spoiler:Nunnally says she believes that an immortal Lelouch will eventually be able to bring true peace to the world; but Lelouch feels that he will forever be the Demon King; trying to destroy it.]]
* BodyguardCrush: Alice really doesn't hide this at all. She wants to be Nunnally's Knight, even if she has to crush the rebellion and that strange new Knightmare that has shown up.
* BroughtDownToNormal: [[spoiler: When C.C. dies, every geass she ever gave vanishes.]]
* BullyHunter: Alice regarding Nunnally.
* CanonForeigner: A few. They are:
** Nemo: A cloned doll of CC; she connects to Nunnally early on and becomes her SuperPoweredEvilSide (although nobody can see her "Dark Nunnally" aspect) and later [[spoiler: after Nunnally rejects her; she gives her power to Alice.]]
** The Irregulars: A group of mech-riding war orphan girls trained as Britannian Agents and given artificial Geass powers; they are under the command of cyborg scientist named Madd.
*** Alice is one of them. She has SuperSpeed. She's also a fellow student of Nunnally's and her good friend; but doesn't realize she's fighting Nunnally on the battlefield; while fighting for her sake. (A common ''CodeGeass'' theme)
*** Mao [[spoiler: is ''also'' one of them, as a GenderFlip.]]
*** Rolo [[spoiler: is not the TykeBomb character from the anime, but an EvilTwin of Lelouch]]. He also has his canon power [[spoiler: upgraded version: this time he ''really'' freezes time. [[AnIcePerson And everything else for that matter.]] ]]
* DealWithTheDevil: Took this aspect and ran with it.
* DemotedToExtra: Between Nunnally, the Irregulars, a single "season", and long flashbacks, a lot of characters have their parts reduced dramatically. Poor Orange-Kun gets the worst of it, his role consists of getting his shit wrecked by NUNNALLY, than again by NAMELESS MOOKS. That's it.
** Cornellia [[spoiler: only faces superpowered enemies and has to be resqued by Suzaku twice]]. Same for Kallen - [[spoiler: she only wrecks a few mooks, gets outmatched by Nunnaly in the second battle and stalled against zombie mechas in the finale.]]
* EnemyWithout: Nemo chooses to take Nunnally's sublimated anger and hatred as her power source. The problem; though, is that it's ''[[AllLovingHero NUNNALLY]]'' and this is in a limited supply. [[spoiler:Nunnally eventually breaks the contract; though she reabsorbs Nemo on her terms in the end.]]
* EvilTwin: [[spoiler:'''Rolo''' is Lelouch's in this series. Complete with [[LargeHam dramatics]] and (in)famous {{Narm}}ish OhCrap face.]]
* EyepatchOfPower: Mao.
* FaceDeathWithDignity: [[spoiler:Charles and Marianne handle being rejected by their child and erased from existence ''far'' better than they did in the anime]].
** [[spoiler:Probably because they face the end from a MessianicArchetype instead of the MagnificentBastard, and this time they fully intended to have it BE a choice]]
* FanDisservice: We see Nunnally being subjected to several {{Panty Shot}}s in a early chapter. It is not portrayed in any sexual sense, considering that Nunnally is a crippled blind 14 old girl. If anything, it ruins the mood of the scene.
* FixFic: Euphemia gets a [[StuffedInTheFridge serious raw deal]] in the main series: [[spoiler: she nearly ends the rebellion (and the series) by creating an independent Japan within the empire and even convinces Lelouch to side up with her, until Lelouch's geass [[PowerIncontinence freaks out at the worst possible time]] and forces her to kill every Japanese at the signing ceremony]]. Nightmare manages to pay her back just about everything she's due by giving her a fat pile of BigDamnHeroes moments, and eventually [[spoiler: crowning her Empress of Britannia]].
* GambitPileup: The last volume of the manga involves [[spoiler: Charles trying to complete his AssimilationPlot while Marianne plans for Nunnally to go to Kamine Island, Rolo trying to get Nunnally's code to become Demon King, Schniezel's plan to install Euphemia to prevent the AssimilationPlot, Alice trying to save Nunnally and the combined forces of Japan and Britannia working to stop Charles]].
* HeelFaceTurn: [[spoiler:The Irregulars]]
* HenshinHero: Lelouch when he transforms to Zero by his Geass
* HotterAndSexier: Even with the FanDisservice already mentioned.
* {{Immortality}}
* LadyAndKnight: Nemo claims to be Nunnaly's knight at the end of the first volume, though they fight together. After [[spoiler: Nunnaly breaks their contract and is captured by the Order of Eden Vital]] Alice takes up the mantle and the trop is played straight: Nunnaly as the Bright Lady (good natured, princess etc) and Alice as the Bright Knight (powerful, devoted to the lady, fights for her sake). [[spoiler: At the end of Volume 5, Nunnally asks Alice to be her official knight and she accepts.]]
* LargeHam: Lelouch, of course. Also, [[spoiler: his 'twin' Rolo is one, posing magnificiently even as he boasts about his plans to kill Nunnally and Lelouch. Like big brother, like clone.]]
* LighterAndSofter: The cast and even the extras suffer FAR less physical and mental damage than the regular Code Geass. Even the villains are significantly more sympathetic and less monstrous. Exceptions are limited to [[spoiler:C.C. and Genbu]]. Also, [[spoiler:the knights of the round are all zombies, but its unknown if they are even the same knights.]] Moreover, take a note at FixFic above.
** [[spoiler:The Knight of One is still called Bismarck Waldstein, even though he really doesn't look it.]]
* LivingWithTheVillain: Alice and Nunnally go to school together, despite being the pilot of the Mark Nemo and a Britannian soldier, respectively. [[spoiler:They find out about each other's identity in Volume 4]].
* LovingAShadow: Alice worries that she's doing this with Nunnally, and strives to grow past it.
* MeaningfulName: Nunnally's alter-ego: "Nemo" means ''no man'' or ''no one'', which compliments her brother's alias "Zero" (as Diethard put it: ''Zero? As in... nothing?'').
* MeleeATrois: Most of the battles involving Nunnally have this, with Britannia trying to suppress the Japanese, the Japanese trying to defeat Britannia, and Nunnally trying to stop the violence.
* TheMole: [[spoiler: Alice as a Britannian Agent; however she never betrayed Nunnally intentionally.]]
* MyGodWhatHaveIDone
* MythologyGag: Toward the end when Nunnally is talking about realities she has seen, the one shown is the main series.
** [[spoiler:Specifically: the Euphinator incident, Suzaku aiming his gun from the end of the first season and Lelouch's death with Nunnally in front of him.]]
* NightOfTheLivingMooks: Zombie ''Knightmares'' [[spoiler:and the Knights of the Round.]]
* PowerArmor: Possibly Lelouch's Zero suit [[spoiler:and the Knights of the Round.]]
* PunnyName: Knightmare of Nunnally.
* RivalsTeamup: [[spoiler:Lelouch and Suzaku naturally join forces when Nunnally is captured.]]
* RomanticTwoGirlFriendship: Take a wild guess.
* RuleSixtyThree: [[spoiler:Mao]]
* {{Samurai}}: Suzaku, very visibly. Aside from the armor on his uniform, he uses a katana.
* ShootTheDog: [[spoiler: C.C. kills Genbu before he can kill Lelouch so Nunnally won't have to. ("I can't let the hands of Marianne's daughter become soiled")]].
** Later on, Lelouch does the same for Nunnally for both [[spoiler:Clovis AND the JLF hostage takers]]. Thanks to this, ejection pods and KarmicDeath [[spoiler: for Rolo and (sort of) Emperor & Marianne]], Nunnally manages to end the series with a killcount of 0, despite piloting a humongous mecha in a gritty setting.
* ShoutOut: Zero shows up in Saitama and goes [[Anime/MobileFighterGGundam Master Asia]] on everyone. [[http://img46.onemanga.com/mangas/00002282/000137892/19.jpg Seriously.]]
** Take another look at the way Geass is represented in this manga. Normally, in the anime, the Geass powers have names such as "[[CompellingVoice Absolute Obedience]]" or "[[TimeStandsStill The Seal of Absolute Suspension]]". However, the Geass powers here are referred to as The _____ (The Power, The Speed, The Soul...). Now, keep in mind that Rollo's Geass is called "The Ice", and can freeze anything ([[TimeStandsStill even Time itself]]). [[Manga/JoJosBizarreAdventure That's right! Rolo can stop time by yelling "THE ICE!" (in likely Gratuitous English). And his ultimate goal is to steal his enemies' (who he has a prior relationship to) powers in order to become an immortal Demon King!]]
* ShutUpHannibal: Alice to Mao. "I have no idea what you're talking about. From my point of view... you're nothing but a murderer who tried to take Nunnally's life."
* StartOfDarkness: [[spoiler:Charles was nearly killed in an assassination attempt on his idealistic emperor father, and survived with "The Dead" Geass. He uses it to regain power, and starts coming back to his previous ideals, but when Marianne is killed, it destroys her trust in people, and her surviving death with "The Soul" enables her to figure out how to access Eden Vital]]. We see in this in a chapter long flashback.
* SuccessionCrisis: Surprisingly averted. [[spoiler:After many nobles revolt when Charles initiates his plan, it is feared that any of them might try to take power in the confusion, while Cornelia and the Japanese think that they must be rallied together to fight Charles. They try to have Euphemia succeed, but they apparently need a majority vote for her succession to be recognized, ''then'' it is revealed that Schneizel and all those that rallied behind him, support Euphemia's rise to power.]]
** CrazyPrepared: [[spoiler: Schneizel had all the paper work done ''before'' Charles initiated his plan. In other words, he was prepared for the emperor to overthrow his own government. All Euphemia had to do was accept the duty.]]
* SuperStrength: Dalque's Geass, "The Power," although she's apparently quite strong on her own.
* TakeMeInstead: Milly tries this when the terrorists occupying the hotel come to take Nunnally to Kusakabe, claiming that as the eldest daughter of the Ashford family, she has more value as a hostage. The terrorist tells her that the Ashfords don't have much political value any more, and takes Nunnally anyway, causing Milly to suspect that they know Nunnally is a princess.
* TrueCompanions: The irregulars who see each other as sisters. [[spoiler: and betray her boss to save Alice.]]
* {{Tsundere}}: Alice is a very mild Type A to anyone but those who she sees as a threat to Nunnally, when she becomes more [[ViolentlyProtectiveGirlfriend violent]]. See [[http://www.mangafox.com/manga/code_geass_nightmare_of_nunnally/v03/c014/5.html Exhibit A]]
* TykeBomb: Rather than Rolo, [[spoiler:it's Anya.]]
* VillainousBreakdown: Mao.
* WasItAllALie: [[spoiler:When Nunnally is captured by Britannia and asks Alice this, regarding her recent realization that Alice is a Britannian soldier.]]
* WorfEffect: Suzaku, who was a BoringInvincibleHero in the original show. He gets the crap beaten out of him by Lelouch (who is on foot, but also in PoweredArmor, at the time), turning the tide only for [[spoiler:Nunnally]] to rip him a new one. He also fares poorly against [[spoiler:Anya.]] The only fight he wins definitively is a showcase fight against Darlton, or when going up against {{mook}}s.
** [[spoiler:Lelouch(who was on foot), Anya, and NUNNALLY]], though he is able to turn the tide in the first one. Unfortunately, that's still about 3/4s of the fights he gets into.
** But hey, he was doing great against the Knights of the Round, [[spoiler:who happen to be [[NinjaPirateZombieRobot super-powered zombies in zombie robots]].]]
* WorldOfCardboardSpeech: Done by Nunnally to Lelouch, not exactly a hero's confrontation of a BigBad, but rather [[spoiler:her telling him why she chose not to go with their parents' AssimilationPlot.]]
** Also when Nunnally declares that she's been living in the past, and decides to move forward, [[spoiler:curing her blindness and paralysis and thwarting the AssimilationPlot.]]
* ZettaiRyouiki: The girls at Nunnally's school as part of the uniform.
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