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Earth. AfterTheEnd, AD. After one last Great War, the world's been turned into an endless desert, with scant handfuls of humanity eking out an existence amid the ruins of civilization. The world is ruled by an enigmatic race of mutants known as The Third. They appear elf-like, with fine features and slightly pointed ears, but their most distinguishing feature is a third Astral Eye in the middle of their foreheads. If red, this third eye allows them to interface directly with computers or other technology of the old world.

Fearing the world could be thrown into even more dire straits should any of the AppliedPhlebotinum from the Great War get loose, The Third place strict control on what technology the rest of the world can have. Violating the Technos Taboo can result in anything from being dragged off and interrogated, all the way up to execution by the autonomous enforcer known as the Blue Breaker. Even so, there are still people working on and trading in forbidden tech, as breaking the rules and making scientific advances are two of the things humans just do.

It's into this world that Honoka is born. Naturally skilled with the sword, this Dune Runner (read: jack of all trades) will do just about anything during a job aside from killing people. She's joined by her snarky AI partner, Bogie, who pilots the sand tank Honoka runs around the desert in.

The two of them were just going about their lives, doing odd jobs for money and supplies, when one day they encountered an odd young man alone in the middle of the desert. His name is Iks, and meeting him was just the start of an adventure where Honoka's past and present would eventually collide.


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!!'''The Third: The Girl with the Blue Eye''' provides examples of:
* AbsurdlySharpBlade: Admittedly, Honoka's sword is enhanced by her ki, but it still cuts through all sorts of armor with impunity.
* ActionGirl: Honoka and Paife.
* AfterTheEnd
* AIIsACrapshoot
* AnyoneCanDie: You'd think a pair of town punks in the middle of the series would end up being ThoseTwoGuys, wouldn't you?
* ApocalypseHow: Class 1 bordering on 2, with a bit of Class 4 thrown in for good measure.
* AscendToAHigherPlaneOfExistence: Kamui and the Desert Fairy (aka the Star Seed).
* AuthorityEqualsAsskicking: Not so much the humans, but The Third sort of qualify... Fila certainly was able to call up that army real quick when trying to get Honoka and Iks away from the Steel Gorge.
* BalloonBelly: Millie in episode 7.
* BareYourMidriff: Millie
* {{BFS}}: Normally averted, though in episode 22, Honoka channels her chi and extends her katana with it by a good ten feet.
* {{Bishounen}}: Iks.
* BizarreBabyBoom: The Third are all mutants, apparently starting to be born either during or after the Great War.
* [[spoiler:BreakTheCutie: Millie]] and how!
* CannotSpitItOut: Paife, for all her brazenness, never manages to quite tell Honoka what she feels for her.
* ChekhovsGun: Oh, those parachutes will get used for ''something'', Bogie...
* CityOfAdventure: Emporium, Honoka's home city.
* CoolBigSis: Honoka from Millie's point of view.
** And, in a sense, Paife from Honoka's perspective.
* CreepyChild: Gravestone
* DesertPunk
* DidWeJustHaveTeaWithCthulhu: Iks is an observer, and in episode 24 we get to meet just who he's observing for. [[spoiler:Much like Iks, he's not exactly from around here either.]]
* DoesNotLikeMen: Paife.
* DystopianEdict: The Technos Taboo
* EverythingIsOnline: Would explain how easily various machines were hacked at the end of the anime, up to and including the frickin' [[spoiler:[[KillSat Wormhole]] [[WaveMotionGun Driver]].]]
* FanService
* FlashStep: Honoka will do this frequently in battle.
* ForgottenSuperweapon: Gravestone; the Third thought the aerial bombardment years prior destroyed him along with the city he was in.
* GratuitousEnglish: Mostly for important names.
* GunStripping: Honoka loves to do this, seeing how collecting guns is her hobby.
* HealingHands: [[spoiler:Iks]]
* HollywoodCyborg: Kevin and Leon.
* HopelessSuitor: Paife, toward Honoka.
* HumanAliens
* IaijutsuPractitioner: Honoka
* ImplausibleFencingPowers: Honoka is able to destroy one opponent by severing the electrical connections between his nanomachines.
* ImmuneToBullets: Hinted at in an earlier episode, and confirmed in ep 23 after [[spoiler:Iks gets shot at by a group of autonomous soldiers and the bullets seem to be absorbed into some sort of energy barrier]].
* InterspeciesRomance
* InvisibilityFlicker: The Blue Breaker, particularly if he's feeling excited about a battle.
* KatanasAreJustBetter
* KiAttacks: Honoka uses her sword to focus these, Paife can do them barehanded.
* KillSat: The Wormhole Driver.
* LastMinuteHookup: It takes until just before the final credits in Ep 24 for [[spoiler:Iks]] to admit he has feelings for [[spoiler:Honoka]].
* LibationForTheDead: Episode 5
* LoveMakesYouCrazy: Poor Rona Fauna...
* MarshmallowHell: Meilin's way of welcoming Honoka to the clinic.
* MasculineGirlFeminineBoy: Honoka and Iks, respectively.
* MoreDakka: Between all the guns on the PSP and the tank, Honoka loves this trope.
* {{Nanomachines}}: Leon seems to be a sentient colony of the things, and Rona Fauna ([[spoiler:or at least her clone]]) can control them.
* NamesToRunAwayFromReallyFast: Just mentioning Honoka's nickname of "Sword Dancer" will usually make most of Emporium's rowdies run the other direction.
** Gravestone also has a rather unpleasant ring to it... And unlike Honoka, he is not against taking lives.
* NotWithTheSafetyOnYouWont: "You're not very convincing with an empty gun."
* TheObiWan: Walken, to Honoka.
* OhCrap: Face it, if you saw [[spoiler: Honoka wipe out your entire army with a single sword stroke]] like she did in episode 24, you'd have this reaction too.
* OneDimensionalThinking: Averted with the sand dragon escape in episode 8.
* OurElvesAreDifferent: The Third would qualify as Space Elves.
* PoweredArmor
* RidiculouslyHumanRobots: Bogie and Meilin, though the latter is an android.
* SapientTank: Bogey is controlled by an AI and is effectively Honoka's partner as much as vehicle.
* ScienceIsBad: Not completely this trope but ''too much'' of it is. It is why [[DystopianEdict the Technos Taboo]] exists.
* ShortTank: Honoka.
* ShoutOut: Numerous, especially to ''{{Dune}}'' and ''StarWars''.
* ShowerScene
* SingleStrokeBattle: Want to see [[spoiler: an army of robots raining from the sky? Watch episode 24]].
* StaringDownCthulhu: In episode six, Honoka [[spoiler: forces the massive Blue Breaker to retreat with a cold, frightening stare]].
* SufficientlyAdvancedAlien: [[spoiler:Iks]]
* TankGoodness: The sand tank
* ThirdEye: All of the Third ([[spoiler:including Honoka]])
* ThisIsSomethingHesGotToDoHimself: Bogie kicks Iks and Paife out of the tank when facing down an anti-tank chopper.
* TokenMiniMoe: Millie.
* {{Tomboy}}: Honoka
* UnusualUserInterface: The Third's third eye allows them to interface with various tech.
* UsedFuture
* WarriorPoet: Honoka often recites poetry.
* WeaponOfMassDestruction: Tons of them are lying around unused, some with minds of their own.
* WhatMeasureIsANonHuman: A running theme throughout the series as Honoka struggles with the fact that her unique third eye causes her to perceive everything from robots to weapons of mass destruction as living beings that are self-aware in their own right.
* WoobieDestroyerOfWorlds: Rona Fauna.
* WorldWarIII: The Great War in the backstory.
* WrenchWench: Millie is a Wrench Wench in training.
* YourMindMakesItReal: The group's experiences in an illusionary city generated by Gravestone.
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