''[[http://www.fanfiction.net/s/6605670/1/Brutality Brutality]]'', by Gundam Kaizer, is a ''Franchise/KingdomHearts'' fanfiction. It takes place in ''VideoGame/KingdomHearts358DaysOver2'', with the premise that because Axel [[ForWantOfANail was sent on a mission the day before Xemnas found Roxas]], Larxene [[AlternateUniverse was chosen as Roxas's mentor instead]].

From there, Roxas begins to take on Larxene's aggressive nature, and things in the Kingdom Hearts verse start changing a bit more and more with each chapter....

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!!This fic provides examples of:

* AdaptationalBadass: The Guardian boss Heartless gets a) a WaveMotionGun, b) the ability to BeamSpam it from above Roxas's effective attack range, and c) it's presented as generally ''much'' harder to kill than its game counterpart was.
* AlternateUniverseFic: It shows a universe where Larxene was Roxas's mentor instead of Axel.
%%* AntiHero: Roxas.
* TheBerserker: As of chapter 2, Roxas is showing signs of this. [[spoiler: Normally, people just use magic and their weapons - in the case of Roxas, the Keyblade. In this universe, however, he stomps and strangles his enemies, even using a Yellow Opera as a ''grenade''.]]
** Confirmed as of chapter 3 - Zexion remarks about Roxas fighting "like a mini-Saix", and Roxas's default battle plan seems to be AttackAttackAttack
* BloodKnight: Roxas is growing into one, ''possibly'' with shades of CombatSadomasochist with Larxene is concerned.
* CallingTheOldManOut / WhatTheHellHero: In the second chapter, after Xion's introduction, Xemnas asks Larxene for a report on Roxas's progress, and on whether or not he's ready for missions yet. They have a brief conversation about Roxas while completely ignoring/forgetting his presence. Roxas, getting frustrated, interjects, "I'm sitting right here, you know. Don't talk about me like I'm not present!"
* ComesGreatResponsibility: [[PlayingWithATrope Played with.]] Roxas, before an off-screen training session, remembers that Larxene once told him that "With great boredom, comes great [[VideoGameCrueltyPotential cruelty potential]]."
* DarkerAndEdgier: Not enough to warrant more than a T rating (so far), but Roxas's debut fight against some Heartless {{Mooks}} in the second chapter is notably more savage than most fights in ''Franchise/KingdomHearts'' canon, and the Guardian fight in chapter three is near-horrific.
%%* DeadpanSnarker: Various members of Organization XIII, including Marluxia and Zexion.
* ForWantOfANail: Axel was sent on a mission just before the Organization found Roxas, forcing Xemnas to find a replacement mentor.
* HotBlooded: Despite being a Nobody, Roxas is notably much more emotional than he was in canon, especially with regards to frustration. See WhatTheHellHero for details. [[FridgeLogic Given that he's a Nobody]], and his "emotions" are hinted to be genuine rather than an act, Gundam Kaizer has some explaining to do.
* {{Irony}}: In the first chapter, Xemnas decides that, for a change of pace, he'll let his peons vote on who gets saddled with training/rasing Roxas, and himself abstains from voting. It ends up a tie between [[spoiler: Luxord and Larxene]], and Xemnas ends up having to be the tiebreaker anyway, and he decides that the entire thing was a waste of time.
* {{Jerkass}}: Larxene, naturally.
* MadeOfIron: Possibly Roxas, but ''definitely'' The Guardian.
* MajorInjuryUnderreaction: [[spoiler: Roxas apparently gets half his face melted off, and shurgs it off like it's nothing]]. Larxene gives it a good LampshadeHanging.
* NoSocialSkills: Roxas, at least for now. [[JustifiedTrope Justified]], since he's only had about a week to try and develop any.
* PetTheDog: [[PlayingWithATrope In a roundabout way.]] [[{{Jerkass}} Larxene]], making a report to Xemnas in the second chapter, says that he "could probably fetch the laundry by himself..." Which, to be honest, IS a step-up from being totally worthless not long before.
* PrecociousCrush: [[ShipTease Roxas appears to have one for]] [[{{Jerkass}} Larxene]], despite her insulting and degrading him constantly.
%%* PsychoForHire: Larxene was one in canon, and it starts getting referenced in chapter three.
* ReasonableAuthorityFigure: In chapter 1, Gundam Kaizer seems to paint Xemnas, Xigbar, and ''especially'' Zexion as these.
* RebelliousSpirit: Minor example. From what we've seen so far, Roxas is ALREADY rebellious enough to yell at his boss, but not enough to cause any real trouble.
* TookALevelInBadass: Roxas, at least compared to canon at the same timeframe. Apparently [[JustifiedTrope Justified]] in that while Axel didn't do anything with Roxas's first week in canon, Larxene's implied to have been forcing him to defend himself against her attacks.
-->(Larxene would) ... get him used to holding a weapon... one way, or another.
* TrainingFromHell: Offscreen, but heavily implied to be the reason for [[TookALevelInBadass the above trope]].
* {{Tsundere}}: Larxene appears to be something of a ''tsuntsun'' type, although it's (so far) mostly just degrading Roxas. Becomes ''much'' more blatant starting in chapter three.
* VideoGameCrueltyPotential: [[InvokedTrope Invoked]] by Larxene, if you'll excuse that none of the characters [[MediumAwareness are aware that they're]] [[SubvertedTrope actually IN a video game.]]
* VillainProtagonist: It was sort-of implied to start with, being a ''Days'' fic, but chapter three makes it more obvious with Larxene mentioning her love of killing and causing misery... and Roxas is surprisingly okay with that.
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