History Characters / MaiOtome

* FrickinLaserBeams: Fires them out of its eyes to petrify its victims.

* YourCheatingHeart: In the manga, he turns out to have been cheating on Akane, in addition to being loyal to Schwarz.

* SuspiciouslySimilarSubstitute: Possibly meant to be a genderswapped version of Joseph Greer from HiME. This might be the case as his Otome counterpart was nowhere to be seen.

* GagBoob: Her breasts are often a source of humor in the manga.

* TroublingUnchildhoodlikeBehavior: Her hard upbringing has given her a dark, vindictive streak toward the Queen and all associated with her. [[spoiler: When Ai is forced off a cliff by the group Mimi is in, her reaction is disappointment that she didn't cry and beg for her life.]]

%%* BrattyHalfPint

%%* ParentalAbandonment
%%* StreetUrchin

* DefrostingIceQueen''

* TheUnfettered: She’ll do anything for Sergey, [[spoiler:ren join Nagi]].

* HandsomeLech: Apparently Shizuru was her room attendant. Suddenly it all makes sense...

* NotSoWellIntentionedExtremist: Nagi says he plans to bring down the Otome system to put an end to using "substitutes" as fighters in wars and take the world out of the pseudo-MedievalStasis it's been stuck in. Not only do his plans involve mass-murder, but he later reveals that [[spoiler:he feels it's wrong for the Otome to feel all the burdens of war because everyone should feel it, especially the common people since he feels they want it the most. [[{{Hypocrite}} Except he doesn't think he should suffer]] for desiring war]].

* [[spoiler:KilledOffForReal]] [[spoiler:As a result of Fiar's death.]]

Next to Sergey, John Smith is Nagi's most trusted henchman. He is the main developer of much of Schwarz's weapon technology, including the Robes used by the Valkyrie unit.
%%* AffablyEvil
%%* EvilGenius
%%* FourEyesZeroSoul

%%* MrSmith

* GiantSpaceFleaFromNowhere: It’s origins as a superweapon are never quite explained.

* GreaterScopeVillain: In the main anime, as it was hiding in the background but didn’t directly interfere in the conflict; when it appears, even Nagi [[EnemyMine is forced to cooperate]], albeit briefly, with the Otomes to save the planet.

%%* PowerCopying

* OutsideContextProblem: It’s miles more powerful than anything the Otome’s have faced, and unlike the human Nagi is a mindless MechanicalAbomination.

* WholesomeCrossdresser

* AntiVillain: Type IV. She merely wants to spend more time with her sister, and Arika sympathizes so much that she has trouble committing herself to the battle against Miyu.

The younger twin brother [[spoiler:(actually sister)]] of Nagi, Arashi is the [[BigBad main antagonist]] [[UnwittingPawn (except not)]] of the manga's pseudo-sequel, ''Mai-Otome Arashi''. Taking over Artai following Nagi's death, Arashi passes herself off as a man and buys out Garderoube's debt as a means of taking over the installation to avenge Nagi's death, which she blames on Mashiro and the .

* AntagonistTitle'': The work is titled after her and she is seemingly the BigBad.

* BigBrotherAttraction[=/=]BigBrotherWorship: She clearly thought Nagi was a far more awesome person than he really was and held him in awe, and also explicitly described him as her[[BrotherSisterIncest 'ideal lover' and said her 'body yearned for him'].

* DiscOneFinalBoss:She is being used by the Cosmo Beauties.

* HeelFaceTurn: At the end.
* RescueRomance: At 'Mashiro'. The obvious problem with seeking revenge against a ChickMagnet with a penchant for playing BigDamnHeroes; if at any point you are endangered during the process, he ''will'' save you and you ''will'' fall for him.

* BigBadDuumvirate: They’re using Arashi to get the Blue Sky Sapphire.

* DragonAscendant: In the 'Manga/MaiHime'' manga, they were the Obsidian Lord's CoDragons, and seem to be the same for Arashi, but are using her for thier own ends.

* EverythingsBetterWithPrincesses

[[folder:Nagi Dai Artài]]

* FauxAffablyEvil: In the anime, he's outwardly pleasant to people, especially Queen Mashiro, but his actions later on make it clear that this is skin-deep, and he [[MisanthropeSupreme holds nothing but resentment for most people]].

* SmugSnake: He manipulates everyone as part of Bieber plans and is always smug about it, his words dripping with thinly-veiled contempt for everyone he comes across.

[[folder:Nagi Dai Artai]]

* PuppetKing: Despite being the Grand Duke of Artai, he isn’t being used by Sergey.

[[folder:Tomoe Marguerite]]

->'''Otome:''' Nina Wáng
Nagi is the Grand Duke of the nation of Artài and the [[BigBad main antagonist]] of the show. He is short and sneaky, yet holds absolute command over his subjects. He aims to control the whole world and get rid of the Otome system.
* AffablyEvil: In the anime, he's outwardly pleasant to people. Averted in the manga, when he's more willing to openly show cruelty and hostility.

* BadBoss: In the manga, he treats Nina terribly.
* BigBad: He’s the mastermind manipulating everyone [[spoiler:in the anime. [[DiscOneFinalBoss Not so much in the manga]]]].
* DevilInPlainSight: Even for someone who hasn't watched ''Mai-[=HiME=]'', it's made pretty obvious that he up to something evil despite the comedic moments he suffers from. Notably, all jokes with his character are dropped after he gets active with his schemes.
* DiabolicalMastermind: He becomes one of these in the second half, dropping all pretenses of his previous [[AffablyEvil affability]].
* DragonAscendant: In Anime/MaiHime, he was the Obsidian Lord’s [[TheHeavy Heavy]], but here he’s the boss.
* [[spoiler:DiscOneFinalBoss: Manga-only. [[JerkAss His]] [[SmugSnake actions]] in the manga make you think he takes the role of BigBad like he did in the anime, a fact taken advantage of by [[ManBehindTheMan the real masterminds]], True Mashiro and Sergey.]]
* ForTheEvulz: [[spoiler:His real motivation. He wants everyone in the world to "feel the pain of war."]]
* HumiliationConga: [[spoiler:The anime finale has him survive, but after all his plans are foiled his arrested for his war crimes and stuck doing hard labor for the rest of his life.]]
* JerkAss: In the manga, whips Nina with a riding crop when she takes Arika's punishment, and was willing to start wars over minor slights.
* KarmaHoudiniWarranty: After escaping justice in Anime/MaiHime, [[spoiler:he’s arrested (anime)/[[EvilerThanThou killed by the real villains]] (manga)]].
* ManipulativeBastard: He manipulates ''everyone'' in his quest for power.
* OhCrap: Sort of subverted in that it happens exactly ''once'', and lasts for about ten seconds before he goes back to not showing any visible concern.
** [[spoiler:Except when everyone comes to arrest him in the finale of the anime.]]
* PetTheDog: At the end of ''Mai-Otome Arashi'', [[spoiler:he tells Manshiro to take care of his sister in his absence]].
%%* RedemptionEqualsDeath:[[spoiler: Manga-only.]]
%%* SmugSnake

* ATasteOfTheLash: (manga) Strikes Nina's backside with a riding crop. [[spoiler:He surprisingly likes to be on the receiving end as well.]]
* [[spoiler:TogetherInDeath: He can be seen in the end of ''Mai-Otome Arashi'' [[ATasteOfTheLash being happily whipped]] by [[ManBehindTheMan True Mashiro]].]]
* UngratefulBastard: In Zwei, he laughs off the failure of several former Artai military officers to secure his release by taking a bus full of hostages, noting that he would have gotten recaptured quickly if he’d stuck with "idiots" like them. Natsuki finds this appalling.
* UnwittingPawn: [[spoiler:Of Sergey and True Mashiro in the manga.]]
* VillainsOutShopping: First half, only. He often hangs out with the other characters and gets into comedic shenanigans with them.
* WellIntentionedExtremist: Nagi says he plans to bring down the Otome system to put an end to using "substitutes" as fighters in wars and take the world out of the pseudo-MedievalStasis it's been stuck in. That's all well and good, but when those plans include ''mass murder''.[[spoiler: Of course we later see he feels that it's wrong for the Otome to feel all the burdens of war because he feels that everyone should feel it, especially the common people since he feels they want it the most. [[{{Hypocrite}} Except he doesn't think he should suffer for desiring war.]].]]

!!Manga-exclusive characters

->The main character of the manga series. An ordinary boy who is forced to pose as the deceased princess Mashiro to avoid panic about the princess' real fate. [[spoiler:He’s actually her twin.]]

* HiddenBackupPrince: [[spoiler:He's really this after all.]]

* RagsToRoyalty: [[spoiler:Subverted; he actually is part of the Windbloom Royal family.]]

* TheReasonYouSuckSpeech: To [[spoiler:Sergey]], declaring that he doesn't love anyone, even himself.

->Natsuki's younger sister, a child genius who holds a high position in the Aries government despite her extreme youth. She enters the story while attempting to market a mass-produced version of Miyu that she hopes will replace the Otome system... so her big sister can spend more time with her.

-> The president of Aries in the manga, and Natsuki and Alyssa's mother.

[[folder:Sergay Auguste Taiki (spoiler warning)]]
-> The manga incarnation of Sergay, [[InNameOnly who is essentially completely different from his anime counterpart except for his given name]]. He is not Nina's father, is the Prime Minister of Windbloom rather than an officer in the Artai military, and also is a very unpleasant person at heart, who becomes the [[BigBad main antagonist]] after betraying True Mashiro and tries to destroy the world, which he believes to be built on lies.
* AdaptationalVillainy: In the anime, he was a PunchClockVillain. Here, he becomes the BigBad.

* BigBad: Briefly becomes this after usurping True Mashiro.

* EvilChancellor: To Duke Nagi and True Mashiro.
* EvilerThanThou: Eviler than Nagi, seeing as how he betrays and kills him. Later, he does the same to True Mashiro.
%%* KilledOffForReal

* TheManInFrontOfTheMan: To Nagi, and eventually to True Mashiro.
* NietzscheWannabe: Wants to destroy and recreate the world, as he believes it to be based on lies.
* NotQuiteDead: After Fumi’s destruction, but his death at Manshiro’s hands presumably sticks.

* TheStarscream: To both Nagi and True Mashiro.

* WalkingSpoiler: It is difficult to discuss him without revealing how he is completely different from his anime counterpart, including being a BigBad.
* YouHaveOutlivedYourUsefulness: True Mashiro suffers this at his hands, and gets killed by Fumi.

->Summoned forth by True Mashiro, they fight against the heroes in the final battle.

!!True Mashiro
The real Mashiro, who supposedly died but was really lying in wait, manipulating Nagi. She serves as the [[ManBehindTheMan true]] [[BigBad antagonist]] of the manga.
* AdaptationalVillainy: Downplayed; she was morally ambiguous but not evil in Manga/MaiHime, while here she’s the true BigBad.

* BigBad: She’s the one behind Nagi, and wants to control the world herself. For most of the manga (until Sergey’s betrayal), she’s the true antagonist.

* CainAndAbel: At the very least, she doesn’t particularly care for her brother.

* EvilCripple: She’s still wheelchair-bound, but unlike her morally ambiguous role in Anime/MaiHime, in here she’s truly evil.
* FakingTheDead: Supposedly she was deceased, but she’s still alive and plotting. Subverted in that her current body is a doll avatar, and she’s technically already dead.

* HijackedByGanon: She’s heavily implied to be the same Mashiro from Manga/MaiHime.
* NonActionBigBad: Due to being wheelchair-bound and using a doll as an avatar, she relies on Nagi, Fumi, and Sergey to do the legwork, a fact the latter [[TheStarscream exploits.]]

* TakeOverTheWorld: Her goal, like Nagi before her.
* TogetherInDeath: She can be seen at the end of ''Mai-Otome Arashi'' [[ATasteOfTheLash happily whipping]] [[DiscOneFinalBoss Nagi]].
* WalkingSpoiler: The mere existence of another Mashiro sets off a series of [[TheReveal reveals]] that turn the entire plot on its head. In order: Sergey is working for her and not Nagi, she's the real Mashiro, she's [[FakingTheDead not dead]] except she is and her current body is an avatar, she's heavily implied to be the Manga/MaiHime Mashiro, and she’s the real villain until Sergey takes her place.

-> The younger twin brother [[spoiler:(actually sister)]] of Nagi, Arashi is the [[BigBad main antagonist]] [[spoiler:[[UnwittingPawn (except not)]]]] of the manga's pseudo-sequel, ''Mai-Otome Arashi''. Taking over Artai following Nagi's death, Arashi [[spoiler:passes herself off as a man and]] buys out Garderoube's debt as a means of taking over the installation to avenge Nagi's death, which he blames on Mashiro and the Otome.
* AntagonistTitle: The work is titled after him.
* AvengingTheVillain: Nagi, in this case.
* [[spoiler:{{Bifauxnen}}: Turns out to be this.]]
* BigBad: He aims to take over Garderoube, [[spoiler:but [[SamusIsAGirl she’s]] a pawn of her own sidekicks]].
* BigBrotherAttraction[=/=]BigBrotherWorship: He clearly thought Nagi was a far more awesome person than he really was and held him in awe, which is fine and even sort of cute. But [[spoiler:she also explicitly described him as her [[BrotherSisterIncest 'ideal lover' and said her 'body yearned for him']], which is [[{{Squick}} less cute]]]].
* [[spoiler:DefrostingIceQueen: Began as a SmugSnake to rival her brother, ended as a Type-A {{Tsundere}}.]]
* [[spoiler:DiscOneFinalBoss:She’s being used by the Cosmo Beauties.]]
* [[spoiler:FatherIWantToMarryMyBrother: Though she kept it up well after she realized the implications.]]
* [[spoiler:HeelFaceTurn: At the end.]]
* [[spoiler:RescueRomance: At 'Mashiro'. The obvious problem with seeking revenge against a ChickMagnet with a penchant for playing BigDamnHeroes; if at any point you are endangered during the process, he ''will'' save you and you ''will'' fall for him.]]
* [[spoiler:UnwittingPawn: A pair of thieves had infiltrated her staff and used her as their tool to get into Garderoube.]]
* [[spoiler:VillainousCrossdresser: At first. She drops the crossdressing around the same time she drops the villainy.]]
* WalkingSpoiler: [[spoiler:Her true gender and status as DiscOneFinalBoss.]]
* WhiteHairBlackHeart: Like his brother before him, [[spoiler:except she’s really not that bad]].

-> Arashi’s assistants [[spoiler:and the true main antagonists]] in ''Mai Otome Arashi'', [[spoiler:who use Arashi in order to get into Garderobe in an effort to obtain the Azure Sky Sapphire]].
* [[spoiler:BigBadDuumvirate: They’re using Arashi to get the Blue Sky Sapphire.]]
* CoDragons: To Arashi. [[spoiler:[[TheManInFrontOfTheMan Sort of.]]]]
* [[spoiler:DragonAscendant: In the Anime/MaiHime manga, they were the Obsidian Lord’s CoDragons, and seem to be the same for Arashi, but are using her for thier own ends.]]
* FemmeFatalons: Yang Guifei.
* [[spoiler:FinalBoss: Of Arashi.]]

* [[spoiler:TheManInFrontOfTheMan: To Arashi.]]
* WalkingSpoiler: [[spoiler:They’re the real villains.]]

* DudeMagney: [[AllThereInTheManual Supplementary material]] says that this was why she couldn't hold down a master, she was forced to cancel several of her Otome contracts, due to her Masters falling in love with her.

* HelloNurse: [[AllThereInTheManual Supplementary material]] says that this was why she couldn't hold down a master.
* HotTeacher
* LadyOfWar

* HotScientist

* CantHoldHisLiquor
* FacialMarkings

* RegalRinglets

* GirlishPigtails

* TheStoic

* BrattyHalfPint

* ParentalAbandonment
* StreetUrchin

* [[ProudWarriorRaceGuy Proud Warrior Race Guys]]

* FieryRedhead

* BlackKnight
* BladeOnAStick
* DarkIsNotEvil

* TallDarkAndHandsome

* [[spoiler:RedemptionEqualsDeath: Manga-only.]]
* SmugSnake

* [[spoiler:UnwittingPawn: Of Sergey and True Mashiro in the manga.]]

* WellIntentionedExtremist: Nagi says he plans to bring down the Otome system to put an end to using "substitutes" as fighters in wars and take the world out of the pseudo-MedievalStasis it's been stuck in. That's all well and good, but when those plans include ''mass murder''...
** [[spoiler: Of course we later see he feels that it's wrong for the Otome to feel all the burdens of war because he feels that everyone should feel it, especially the common people since he feels they want it the most. [[{{Hypocrite}} Except he doesn't think he should suffer for desiring war.]].]]

* {{Meganekko}}
* NiceGirl
* OddCouple: With Haruka.
* ReasonableAuthorityFigure

* BoobsOfSteel

* BoisterousBruiser

* {{Determinator}}

* HotBlooded
* LargeHam

* {{Malaproper}}

* OddCouple: With Yukino

* [[IllGirl Ill Boy]]: In the manga, he's even confined to a wheelchair.

* TheWisePrince

* [[spoiler:KilledOffForReal]]

* BaldOfEvil

* AlliterativeName

* [[KingIncognito Prince Incognito]]: Initially doesn't introduce himself to Arika and her friends as royalty.

* AffablyEvil
* EvilGenius
* FourEyesZeroSoul
* [[spoiler:KilledOffForReal: Once Sergey finds out what's fueling the Valkyrie Robes (it's Lena Sayers' corpse), he gets extremely pissed off and puts two bullets in Smith's head.]]

* MrSmith

* BadassLongcoat

* MysteriousProtector
* NiceHat
* RobotGirl
* SwissArmyAppendage

* BigEater
* [[spoiler:CatsAreMean (manga)]]
* [[spoiler:DistinguishingMark: She's not an Otome, but a [=HiME=], and has the spiral mark to prove it.]]
* [[spoiler:GodWasMyCoPilot]]
* [[spoiler:GreatGazoo: in cat form]]

* [[spoiler:NotSoDifferent: To Arika- Mai and Mashiro's reactions to them enjoying Mai's cooking can respectively be summed up as "great, another Mikoto" and "great, another Arika".]]
* [[spoiler:PhysicalGod: Mai says she could never beat her even with her robe on.]]

* PowerCopying

* CheerfulChild

* [[spoiler:HiddenBackupPrince: He's really this after all.]]

* BigSisterWorship
* CheerfulChild

* {{Meganekko}}
* ReasonableAuthorityFigure
* StrongFamilyResemblance

* KilledOffForReal

* DoesNotLikeMen: In the manga, to the point of panic attacks. She makes an [[ItsOkayIfItsYou exception for Manshiro]].

* DoesNotLikeMen: In the manga, to the point of panic attacks.

* {{Expy}}: Almost an older one of ''Anime/MaiHime'''s Yuuichi Tate (visually, anyway).

* TheOjou: And also [[spoiler:NonRoyalPrincess]]...which is the same trope, really.
* ParentalAbandonment: Both the previous king and queen were killed fourteen years ago. [[spoiler: Since she's really just a random baby the home secretary found and claimed was Princess Mashiro, she's never known her real parents, either.]]

* PlotBasedVoiceCancellation: It's never revealed exactly what his real name is.

* GreenEyes

!Mai-Otome
[[folder:Main Characters]]
!!Arika Yumemiya

!!Nina Wáng

!!Mashiro Blanc de Windbloom

[[folder:Garderobe Academy Students]]
!!Coral Otome

!!!Erstin Ho

!!!Irina Woods

!!!Tomoe Marguerite

!!! Miya Clochette

!!! Yayoi Alter

!!! Lillie Aldean

!!Pearl Otome

!!!!Akane Soir

!!!!Chie Hallard

!!!!Shiho Huit

!!!Juliet Nao Zhang

[[folder:Garderobe Academy Faculty]]
!! Fumi Himeno

->'''Master:''' Unknown Mashiro look-alike, [[spoiler:True Mashiro(manga)]]

!! The Five Columns

!!! Column I: Sara Gallagher

!!! Column II: Natsuki Kruger

!!! Column III: Shizuru Viola

!!! Column IV: [[spoiler:See Juliet Nao Zhang]]

!!! Column V: Mahya Blythe

!! Staff
!!! Maria Graceburt

!!! Yukariko Steinberg

!!Yohko Helene

[[folder:Other Otome]]
!!!Lena Sayers

!!Anh Lu

!!Mai Tokiha

!!Rosalie Claudel

* HeelFaceTurn: [[spoiler:Joins Mashiro in stopping the Harmonium after finding out that Nagi has betrayed his allies]]

!!Carla Bellini

!!Laula Bianchi

[[folder:Windbloom]]

!! Aoi Senoh

!! Sakomizu Cardinal

!! Mimi

[[folder:The Aswad]]

!!Midori

!!Rad

!!Lumen

!!Dyne

%%* TheBigGuy

!!Gal

%%* [[TheSmartGuy The Smart Girl]]

[[folder:Artài Principality]]
A cold, impoverished country with little military power and no Otome.
!!Nagi Dai Artài

Nagi is the Grand Duke of the nation of Artài and the [[BigBad main antagonist]] of the show. He is short and sneaky, yet holds absolute command over his subjects.

* AristocratsAreEvil

* BigBad: He’s the mastermind manipulating everyone [[spoiler:in the anime. [[DiscOneFinalBoss Not so much in the manga.]]]]

* KarmaHoudiniWarranty: After escaping justice in Anime/MaiHime, [[spoiler:he’s arrested(anime)/[[EvilerThanThou killed by the real villains]](manga)]].

* ATasteOfTheLash (manga): Strikes Nina's backside with a riding crop. [[spoiler:He surprisingly likes to be on the receiving end as well.]]

** [[spoiler: Of course we later see he feels that it's wrong for the Otome to feel all the burdens of war because he feels that everyone should feel it, especially the common people since he feels they want it the most. [[{{Hypocrite}} Of course he doesn't think he should suffer for desiring war.]].]]

!!Sergay Wáng

[[folder:Aries Republic]]
!!Yukino Chrysant

!!Haruka Armitage

[[folder:Zipang]]

!! Takumi Tokiha no Kami Tadayori

!! Akira Okuzaki

[[folder:Cardair]]
!!Fiar Grosse

!!Argos XIV

!!Kazuya Krau-Xeku

[[folder:Schwartz]]
!!John Smith

[[folder:Other Characters]]
!!Miyu

* {{Meido}}: In the manga, is one of the MAIDs, a series of androids Alyssa hopes will replace the Otomes.

!!Mikoto

* [[spoiler:GreatGazoo, in cat form]]

! Mai-Otome Zwei
[[folder:Mai-Otome Zwei]]
!! Yuna

* DemonicPossesion: [[spoiler:It takes control of Fumi.]]

!! Wattarl Ishigermin

!!Ribbon-Chan

! Manga-exclusive characters
[[folder:Manga-exclusive characters]]
! "Mashiro" (real name unknown)
->The de facto main character of the manga series. An ordinary boy who is forced to pose as the deceased princess Mashiro to avoid panic about the princess' real fate. [[spoiler:He’s actually her twin.]]

* [[PlotBasedVoiceCancellation Plot-Based Voice Cancellation]]: It's never revealed exactly what his real name is.

! Alyssa Kruger

* BigSisterWorship: Oh, my yes.

* ManipulativeBastard: Tries to rig a contest in her favor by sending Miyu to seduce the judge. One wonders how an eight-year-old thought up ''that'' one...

! Saeko Kruger

! Sergay Auguste Taiki
-> The manga incarnation of Sergay, [[InNameOnly who is essentially completely different from his anime counterpart except for his given name]]. He is not Nina's father, is the Prime Minister of Windbloom rather than an officer in the Artai military, and also [[spoiler:is a very unpleasant person at heart, who becomes the [[BigBad main antagonist]] after betraying True Mashiro and tries to destroy the world, which he believes to be built on lies]].
* [[spoiler:AdaptationalVillainy]]: [[spoiler:In the anime, he was a PunchClockVillain. Here, he's a BigBad.]]
* [[spoiler:BigBad: Briefly becomes this after usurping True Mashiro.]]

* [[spoiler:EvilChancellor: To True Mashiro.]]
* [[spoiler:EvilerThanThou]]: [[spoiler:Eviler than Nagi.]]
* [[spoiler:AGodAmI:After he goes into his OneWingedAngel form.]]
* [[spoiler:KilledOffForReal]]
* LargeHam: [[spoiler:After he's revealed as a villain, during his MotiveRant]].
* [[spoiler:TheManInFrontOfTheMan: To Nagi, and eventually to True Mashiro.]]
* NietzscheWannabe: [[spoiler:Wants to destroy and recreate the world, as he believes it to be based on lies.]]
* [[spoiler:NotQuiteDead]]: [[spoiler:After Fumi’s destruction, but his death at Manshiro’s hands presumably sticks]].
* [[spoiler:OneWingedAngel]]: [[spoiler:Turns into a large black demon]].
* [[spoiler:TheStarscream: To both Nagi and True Mashiro.]]

* WalkingSpoiler
* YouHaveOutlivedYourUsefulness: [[spoiler:True Mashiro suffers this at his hands, and gets killed by Fumi.]]

! [[spoiler:The Dark Hime]]
->Summoned forth by [[spoiler:True Mashiro]], they do battle against the heroes in the final battle.
* ACupAngst: [[spoiler:Dark Natsuki]], who is very sensitive about her chest and jealous of Erstin's large breasts.
* CurbStompBattle: [[spoiler:Manshiro vs. Dark Mai.]]
* EvilCounterpart
* {{Malaproper}}: [[spoiler:Dark Yukino]]. She and [[spoiler:Dark Haruka]] appear to have reversed roles compared to their counterparts.
* MythologyGag: [[spoiler:Although this is based off of the ''Manga/MaiHime'' manga, in which Shizuru is not a Hime, Shizuru wonders what her own counterpart would be like, and conjures up an image of herself from the ''[=Mai-HiME=]'' anime, complete with GlowingEyesOfDoom and a MartialArtsHeadband with "Natsuki Love" on it.]]
* NaughtyNuns: [[spoiler:Dark Yukariko]] has an extremely revealing outfit.
* PsychoLesbian: [[spoiler:Dark Yukino and Dark Haruka.]]
* TheVamp: [[spoiler:Dark Yukariko.]]
* VillainOverride: [[spoiler:Dark Alyssa tries this on Miyu, but Alyssa responds that Miyu is her most important person, inspiring Miyu to overcome it and kill Dark Alyssa.]]

! [[spoiler:True Mashiro]]
[[spoiler:The real Mashiro, who supposedly died but was really lying in wait, manipulating Nagi. She serves as the [[ManBehindTheMan true]] [[BigBad antagonist]] of the manga.]]
* [[spoiler:AdaptationalVillainy: Downplayed; she was morally ambiguous but not evil in Anime/MaiHime, while here she’s a BigBad.]]
* [[spoiler:AlasPoorVillain: Gets a moment of this when she dies. Even her brother starts crying.]]
* [[spoiler:BigBad: She’s the one behind Nagi, and wants to control the world herself. For most of the manga (until Sergey’s betrayal), she’s the true antagonist.]]
* [[spoiler:BodyguardBetrayal: Suffers this at the hands of Fumi and Sergey.]]
* [[spoiler:CainAndAbel: At the very least, she doesn’t particularly care for her brother.]]
* [[spoiler:TheChessmaster: She sets everything in motion from the shadows.]]
* [[spoiler:EvilCripple: She’s still wheelchair-bound, but unlike her morally ambiguous role in Anime/MaiHime, in here she’s truly evil.]]
* [[spoiler:FakingTheDead: Supposedly she was deceased, but she’s still alive and plotting. Subverted in that her current body is a doll, and she’s technically already dead.]]
* [[spoiler:GodSaveUsFromTheQueen: Unlike her anime counterpart, who was a misguided RoyalBrat, this Mashiro is actively malevolent.]]
* [[spoiler:HijackedByGanon: She’s heavily implied to be the same Mashiro from Anime/MaiHime.]]
* [[spoiler:NonActionBigBad: Due to being wheelchair-bound, she relies on Nagi, Fumi, and Sergey to do the legwork, a fact the latter [[TheStarscream exploits.]]]]
* [[spoiler:ManipulativeBastard: She continues this trend from Anime/MaiHime.]]
* [[spoiler:TheSmurfettePrinciple: Prior to her, all the {{Big Bad}}s in all the Hime and Otome stories were male. She’s the first female to hold a position as BigBad.]]
* [[spoiler:TakeOverTheWorld: Her goal, like Nagi before her.]]
* [[spoiler:TogetherInDeath: She can be seen at the end of ''Mai-Otome Arashi'' [[ATasteOfTheLash happily whipping]] [[DiscOneFinalBoss Nagi]].]]
* WalkingSpoiler: The mere existence of [[spoiler:another Mashiro]] sets off a series of [[TheReveal reveals]] that turn the entire plot on it’s head. In order: [[spoiler:Sergey’s working for her, she’s the real Mashiro, she’s not dead except she is, she’s implied to be the Anime/MaiHime Mashiro, and she’s the real villain until Sergey takes her place.]]

! Arashi Dai Artai
-> The younger twin brother [[spoiler:(actually sister)]] of Nagi, Arashi is the [[BigBad main antagonist]] [[spoiler:[[UnwittingPawn (except not)]]]] of the manga's pseudo-sequel, ''Mai-Otome Arashi''. Taking over Artai following Nagi's death, Arashi [[spoiler:passes herself off as a man and]] buys out Garderoube's debt as a means of taking over the installation to avenge Nagi's death, which he blames on Mashiro and the Otome.
* AntagonistTitle: The work is titled after him.
* AvengingTheVillain: Nagi, in this case.
* [[spoiler:{{Bifauxnen}}: Turns out to be this.]]
* BigBad: He aims to take over Garderoube, [[spoiler:but [[SamusIsAGirl she’s]] a pawn of her own sidekicks]].
* BigBrotherAttraction[=/=]BigBrotherWorship: He clearly thought Nagi was a far more awesome person than he really was and held him in awe, which is fine and even sort of cute. But [[spoiler:she also explicitly described him as her [[BrotherSisterIncest 'ideal lover' and said her 'body yearned for him']], which is [[{{Squick}} less cute]]]].
* [[spoiler:DefrostingIceQueen: Began as a SmugSnake to rival her brother, ended as a Type-A {{Tsundere}}.]]
* [[spoiler:DiscOneFinalBoss:She’s being used by the Cosmo Beauties.]]
* [[spoiler:FatherIWantToMarryMyBrother: Though she kept it up well after she realized the implications.]]
* [[spoiler:HeelFaceTurn: At the end.]]
* [[spoiler:RescueRomance: At 'Mashiro'. The obvious problem with seeking revenge against a ChickMagnet with a penchant for playing BigDamnHeroes; if at any point you are endangered during the process, he ''will'' save you and you ''will'' fall for him.]]
* [[spoiler:UnwittingPawn: A pair of thieves had infiltrated her staff and used her as their tool to get into Garderoube.]]
* [[spoiler:VillainousCrossdresser: At first. She drops the crossdressing around the same time she drops the villainy.]]
* WalkingSpoiler: [[spoiler:Her true gender and status as DiscOneFinalBoss.]]
* WhiteHairBlackHeart: Like his brother before him, [[spoiler:except she’s really not that bad]].

!The Great Cosmo Beauties (Marie Antoinette and Yang Guifei)
-> Arashi’s assistants [[spoiler:and the true main antagonists]] in ''Mai Otome Arashi'', [[spoiler:who use Arashi in order to get into Garderobe in an effort to obtain the Azure Sky Sapphire]].
* [[spoiler:BigBadDuumvirate: They’re using Arashi to get the Blue Sky Sapphire.]]
* CoDragons: To Arashi. [[spoiler:[[TheManInFrontOfTheMan Sort of.]]]]
* [[spoiler:DragonAscendant: In the Anime/MaiHime manga, they were the Obsidian Lord’s CoDragons, and seem to be the same for Arashi, but are using her for thier own ends.]]
* FemmeFatalons: Yang Guifei.
* [[spoiler:FinalBoss: Of Arashi.]]
* LovelyAngels: Villainous variant.
* [[spoiler:TheManInFrontOfTheMan: To Arashi.]]
* WalkingSpoiler: [[spoiler:They’re the real villains.]]
* WhipItGood: Marie Antoinette.

* CelibateHeroine: After they end up on opposite sides, Arika gives up on pursuing [[spoiler:Sergay]] and commits herself to being an Otome.

* BigBad: He aims to take over Garderoube, [[spoiler:but [[SamusIsAGirl she’s]] a pawn of her own sidekicks.]]
* BigBrotherAttraction[=/=]BigBrotherWorship: He clearly thought Nagi was a far more awesome person than he really was and held him in awe, which is fine and even sort of cute. But [[spoielr:she also explicitly described him as her [[BrotherSisterIncest 'ideal lover' and said her 'body yearned for him']], which is [[{{Squick}} less cute]]]].

! The Dark Hime

* ACupAngst: Dark Natsuki, who is very sensitive about her chest and jealous of Erstin's large breasts.
* CurbStompBattle: [[spoiler:Manshiro vs. Dark Mai]]

* {{Malaproper}}: Dark Yukino. She and Dark Haruka appear to have reversed roles compared to their counterparts.
* MythologyGag: Although this is based off of the ''Manga/MaiHime'' manga, in which Shizuru is not a Hime, Shizuru wonders what her own counterpart would be like, and conjures up an image of herself from the ''[=Mai-HiME=]'' anime, complete with GlowingEyesOfDoom and a MartialArtsHeadband with "Natsuki Love" on it.
* NaughtyNuns: Dark Yukariko has an extremely revealing outfit
* PsychoLesbian: Dark Yukino and Dark Haruka.
* TheVamp: Dark Yukariko
* VillainOverride: [[spoiler:Dark Alyssa tries this on Miyu, but Alyssa responds that Miyu is her most important person, inspiring Miyu to overcome it and kill Dark Alyssa]].

->Summoned forth by [[spoiler:the real Mashiro]], they do battle against the heroes in the final battle.

* WalkingSpoiler: The mere existence of [[spoiler:another Mashiro]] turns the entire plot on it’s head.