* SugarWiki/AwesomeMusic: Music/YukiKajiura delivers yet again.
* CompleteMonster: [[AxCrazy Friday Monday]] is the [[BigBad founder and leader]] of [[TheSyndicate the Enfant organization]] and [[RealityWarper one of the few Gift users]]. Believing that [[StrawNihilist morality is nothing more than human's mask to hide its desire for war]], Monday actively tries [[ToCreateAPlaygroundForEvil to bring out their "true nature"]]. In 1999, with the power of the [[MacGuffin Holy Books]] and the Gift, he initiated a ritual to brainwash the entire humanity to start global warfare. It caused a nearby plane to crash, leaving only two survivors. After his attempt was foiled by Richard Burton, Monday retaliated by [[BrainwashedAndCrazy mind-controlling him into trying to murder]] [[WouldHurtAChild Margaret, his own daughter]], who was forced to kill him. As Gazth-Sonika was the only country affected by the ritual, Friday Monday is the one who started the civil-war and prolonged it for twelve years through all kinds of means—such as political corruption, [[HeKnowsTooMuch murder]], and forced identity amnesia, among others--making him responsible for all the deaths that happened in the series. Finally, after he eventually found the two Holy Books he lost, Monday kidnapped and mind-controlled Margaret into help him to get in the Sanctuary to finish the ritual he started twelve years ago. A nihilistic, [[KnightTemplar self-righteous]] DiabolicalMastermind, Friday Monday is the only character who has never shown a single redeeming quality.
* DieForOurShip: Limelda, for the Madlax/Vanessa shippers. And Vanessa, for Madlax/Limelda shippers... [[TooSoon oh,]] [[DroppedABridgeOnHim wa]][[ClimacticBattleResurrection it.]]
** ShipToShipCombat
* FoeYay: Limelda vs. Madlax. Limelda even goes as far as to say "I love you, Madlax." during Episode 20 when [[spoiler: she's about to snipe Madlax]].
* LesYay: Plenty as the series goes on, most noticeably between Vanessa and Madlax (and to a lesser extent, Elenore). Limelda's [[PsychoLesbian obsession]] with Madlax also borders on FoeYay.
** Madlax sees herself as the PrinceCharming that's supposed to protect the Princess (who's Vanessa in this case) during Episode 12.
** When Elenore reveals that she's [[spoiler: accompanying Margaret to Gazth-Sonika]] in Episode 17, Margaret smiles and says "I love you." to Elenore. The word Margaret uses here is ''daisuki'' which is a very strong word in Japanese for liking someone in that way.
* {{Moe}}: Madlax oh so much.
* WhatDoYouMeanItWasntMadeOnDrugs: Actually, it was, if you count alcohol as a drug. The director came up with many of the plot twists while drunk. Surprisingly, they still make sense if you watch it while sober.
* TheWoobie: Most of the main characters.
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