''Zettai Shougeki ~Platonic Heart~'' (絶対衝激〜プラトニックハート〜), now licensed by Creator/FUNimation and retitled ''Master of Martial Hearts'', is a five-episode OVA.

Aya Iseshima is a schoolgirl who ends up walking into a brutal battle between a {{Miko}} and a flight attendant. After saving the Miko with her kung fu skills that her mother taught her, Aya learns from both her friend and the Miko (coincidentally [[HisNameReallyIsBarkeep named Miko]]) the story of the "Platonic Heart", a mythical jewel that can supposedly grant any wish to a girl who acquires it. Miko further says that she found herself entered into a tournament to acquire the Platonic Heart with a cell phone text message from an unknown source.

After saying goodbye, Aya then receives a similar text message saying that she has been entered into the tournament in place of Miko, and so begins her reluctant quest to defeat a handful of cosplay-themed {{Action Girl}}s including the aforementioned flight attendant, a nurse, a policewoman and more. With clothes-destroying physics and kung fu skills at her disposal, can she overcome her opponents or will she fall into an inescapable world of darkness?

In short, think of this as a streamlined ''Manga/IkkiTousen'' without the thin veil of a ''Literature/RomanceOfTheThreeKingdoms'' plot behind it.

!!This work displays examples of:

* ActionGirl: All the girls in the tournament, though Miko is arguably a FauxActionGirl.
* AndThatsTerrible: You know Female Fighting Tournament Anime is a terrible idea because the loser [[spoiler:is always made a sex slave... for syndicate regulations, apparently]].
* ApologeticAttacker: Aya's teacher practically telegraphs all her moves while she begs Aya to either block or stay down. [[AndKnowingIsHalfTheBattle If only Aya studied her chemistry textbook...]]
* BaitAndSwitchCredits: That opening is so charged with upbeat optimism, and the closing mellow and dreamy. You just know this tournament is going to end in a proud victory!
* BerserkButton: Messing with Haruki or talking bad about him in Aya's presence will get you beaten like a rug in no time. Also, ''never'' try to dissect what makes Aya tick; it's not very conducive to [[KilledOffForReal living]].
* BigBad: [[spoiler:Miko is revealed to have been the mastermind behind everything in the end, with Haruki and Natsume as her CoDragons. It's just as ridiculous as it sounds]].
* BitchInSheepsClothing: And boy, do they enjoy rubbing it in Aya's face during TheReveal.
* BolivianArmyEnding: [[spoiler:The series ends as Aya prepares to end the cycle of revenge by summarily executing Natsume's mother.]]
* BrokenAesop: Really, just read the rest of the page.
* BullyHunter: Aya once took on and defeated an entire school of bullies, single-handedly, and in a single battle, presumably for Natsume's well-being. Ironically, this is precisely what makes her easy prey for the "plot" of the series.
* TheCakeIsALie: Some of the contestants are revealed as having wishes that are physically impossible to fulfill in episode 5.
* CallingYourAttacks: Suma-sensei calls out the formula of common chemicals; whether or not this is to add power to her attack, she also does it to purposely communicate them to Aya.
* TheCallKnowsWhereYouLive: Apparently if there's an open spot in the tournament, any girl who has made a wish and can fight gets a text message inviting them. Subverted with [[spoiler:Aya, as she was the true target all along]].
* CatGirl: Aya out-{{Moe}}s the {{Meido}} with a costume that adds cat ears and tail.
* ChekhovsClassroom: Suma's insistence that Aya study her assigned chemistry lesson. Subverted; though it would've provided clues for the battle, Aya failed to study, and her confusion at trying to recognize the called attacks distracts her from simply reading body language.
* ComplexityAddiction: The entire tournament [[spoiler:done for revenge by Miko, Natsume and Haruki against Aya's ''mother'']], is so complex, long and, in many ways holding itself in inane future predictions; it probably works in fairy dust and BellisariosMaxim to its atomic level.
* ClothingDamage: All women's clothes in this world must be made out of tissue paper when they fight.
** A girl gets punched in the shoulder and her ''skirt'' explodes.
** Aya actually punches a girl's in the gut. Her butt actually rips ''through'' her pants as a result.
** This might actually be a function of the tournament -- before Aya was a contestant, her clothes seemed a lot more durable.
* CripplingOverspecialization: Episode 4's main fighter Rin made it to the Semi-finals because of her stress-based tactics. Apparently she had every fight inside of her shop, and was able to use an otaku crowd and their jeers to stress her opponents out so she could over-power them. When Aya over-comes this and turns the tables, we see Rin's physical prowess is much less than many previous villains like the Sisters.
* CuteMute: Natsume's mother.
* CycleOfRevenge: [[spoiler:The sole reason why the Martial Hearts Tournament was born and still exists.]]
* DarkerAndEdgier: What less charitable viewers may see. While the work could be seen as a deconstruction of PantyFighter series like ''Manga/IkkiTousen'', the fact that they use [[spoiler:[[AndThatsTerrible sex slaves as punishment]], [[PlotHoles handwave registration, law and money]], [[{{Anvilicious}} Take That after Take That]] at the [[StrawLoser fanbase and the rather heavy handed]] DownerEnding]], it can come off as an immature "{{Deconstruction}}" of it. It doesn't help that this all comes at the last minute.
%%* DeathEqualsRedemption: [[spoiler:Aya's mother.]]
* {{Deconstruction}}: Tries to be one towards the PantyFighter genre. Keyword being [[IndecisiveDeconstruction "tries".]]
* DistressedDude: Haruki held hostage.
* DownerEnding: [[spoiler:There's nary a character who is not dead, insane, in some kind of slavery, or ''worse''.]]
* EmptyShell: [[spoiler:The losers of the tournament are transformed into mindless sex slaves and are sent into slavery. Every. Single. ONE!]]
* EvilAllAlong: [[spoiler:Aya's "friends" and love interest]]
* EvilGloating: The "psychic" lady in red in episode 4. Boy oh boy, would she come to regret that.
%%* FairCop
* {{Fanservice}}: Every flavor represented. {{Lampshade|Hanging}}d at a fast food [=McDonalds=] BlandNameProduct named "{{Moe}}".
* AFriendInNeed: How Aya gets herself mixed up in the tournament.
%%* {{Gainaxing}}
* GainaxEnding: Did anyone really see that ending coming? What's worse is that many elements are deliberately left hanging leaving the resolution entirely up to the imagination of the audience.
* GambitPileup: {{Infodump}}ed in the last episode: A trio of sisters who helped organize the tournament wanted Aya to join them, but they were being manipulated by a man who looked like Haruki, a boy Aya liked. Except that boy turned out to be a [[spoiler:body double for the real Haruki]] who was working with [[spoiler:Natsume and Miko who were secretly acting as Aya's friends]]. And they were trying to get revenge in the name of Natsume's mother, who lost her vocal cords when she lost the last tournament to Aya's mother, who in turn entered because Natsume's grandfather had started the whole damn thing.
* HandOrObjectUnderwear: Aya covers herself while fighting at the pool after one punch takes off her bikini top.
%%* HeroicResolve
* {{Hypocrite}}: Miko [[spoiler:blaiming Aya for destroying the other contestants' lives and minds after defeating them...when she and the others were the ones who literally {{Mind Rape}}d them to idiocy after they were too weak to defend themselves. And also reconstructed, or simply exploited, said tournament for vengeance in the first place]].
%%* HotTeacher
* IdolSinger: Rin-chan invokes {{Meido}} and MagicalGirl in her act.
* IndecisiveDeconstruction: When you're going to go after the PantyFighter genre, ''don't'' include '''''more''''' fanservice and nudity than the series you're trying to lambast. It makes you look like a gang of hypocrites.
* InfoDump: The last episode is literally just explaining the plot twist.
* InsaneTrollLogic: The explanation of [[spoiler:Miko, Haruki and Natsume]] for the Tournament is so mind-bogglingly stupid it would leave the viewer in the same capacity as [[spoiler:the former contestants]].
* KilledOffForReal: '''Everyone''' that appears in Fight 5, except [[spoiler:Aya]]. Heavily believed to be the case for [[spoiler:Natsume's mother]], given her role in the series.
* KillEmAll: [[spoiler:Everyone ends up dead or worse by the end of the series.]]
%%* KimonoFanservice
* KickTheSonOfABitch: Really, you can't help but to cheer at [[spoiler:Aya's mother dishing the oh-so-very deserved brutal beatdown in Chapter Five]].
%%* KubrickStare
* LoveTriangle: A particularly cruel Type 4 involving Aya (a), Haruki (b) and [[spoiler:Miko (c)]].
* MadeASlave: [[spoiler:Everyone who loses a Martial Hearts tournament]] gets made a SexSlave.
* MamaBear: Aya's mother, RetiredMonster Suzuko Ichisima.
* MaleGaze: ''Yes''. The shower scene in episode two, where the camera spends a full minute crawling up Aya's naked body so that she can say one word is possibly the best example.
* {{Meido}}: At a theme cafe, no less.
* {{Miko}}: Miko. No one comments on the unoriginal, MeaningfulName.
%%* MisplacedRetribution: The ending.
* MoodWhiplash: Back and forth and back and ''forth''!
%%* NaughtyNurseOutfit
* NoHoldsBarredBeatdown: Carried to its logical conclusion by [[spoiler:Aya versus the lady in red in the finals]].
* NotJustATournament: A big time (and convoluted as hell) case of this. [[spoiler:Every girl who loses the tournament is {{Mind Rape}}d into an EmptyShell state before being conditioned into sexual slavery and sold. The entire thing is being conducted as a CycleOfRevenge by the daughters of two sisters who wound up on the losing end of a similar tournament organized by Aya's father, which Aya's mother won. The two cousins want the same thing their mothers got put through to happen to Aya as revenge against both of her parents, and they don't care about what happens to the other contestants.]]
* ObfuscatingStupidity: [[spoiler:Aya's mother]] for certain, as she remains just as lethal and unforgiving as stated, despite it being years since she had to fight.
* OffModel: Seriously Studio Arms, pick a breast size and stick with it.
* PantyFighter: Either an example of the genre with a half-assed attempt at {{Deconstruction}} applied on top to justify it, or an IndecisiveDeconstruction of the genre, depending on how charitable you're feeling.
%%* {{Qipao}}
* TheReasonYouSuckSpeech: Battle 5 is basically made up of this, from the lady in red who brutally strips Aya psyche bare [[spoiler:which inadvertently [[BerserkButton flips Aya]] into [[UnstoppableRage "pure evil"]] and impossible for the psychic to read. Cue [[NoHoldsBarredBeatdown the most brutal]] [[KilledOffForReal unforgiving beatdown in the whole contest]]]]. After Aya wins, she [[WhamEpisode basically lives in this trope]] at the hands of [[spoiler:Miko, Natsume and Haruki as they reveal the Martial Heart was [[GambitPileup a massive plot for revenge against Aya for her parents' sins against their mothers]]. Just as Aya is about to be killed by her "friends"]], Aya's [[spoiler:''own mother'']] shows up to deliver a speech of her own, revealing the true circumstances of the Martial Hearts while [[spoiler:casually [[NeckSnap killing Haruki, Miko and Natsume with one hand]]]].
* RetiredMonster: [[spoiler:Suzuko Ichisima.]]
* RevengeByProxy: [[spoiler:The whole point of the series, e.g. having the main character beaten, mindraped and possibly sold into sexual slavery as a final ''Screw You!'' to her still-living mother and her currently dead father, responsible for having dealt this very same fate to the still-living mother of one of the villains]].
* SelectiveObliviousness: When the villains appear, they reveal that [[spoiler:the whole Martial Hearts tournament was a plot to get revenge on the main character because her parents hurt their parents by holding the original Martial Hearts tournament. ''They recreated the same event that permanently scarred their parents, including the part where losers are sold into slavery, in a plot to get revenge on someone who had no knowledge of the original event.'']]
* SempaiKohai: Aya and Natsume, with some GirlsLove implication, [[spoiler:though the latter turns out to be a huge ruse]].
%%* SexyStewardess
* SinsOfOurFathers: [[spoiler:The true purpose of the tournament is to exact revenge on Aya because her father created the first incarnation of the tournament and drove the villains' mothers insane and her mother won said tournament.]]
%%* StepfordSmiler
* SurveillanceAsThePlotDemands: While Aya's is explained [[spoiler:by being done by Miko and the rest]], it never makes sense how they recruit the rest of the girls, except for the {{Handwave}} explanation below. The requisites for entry are, after all, kind of limited for most of the population.
* TalkingIsAFreeAction: Plenty of time for TrashTalk.
* UnPerson: After [[spoiler:Miko]] withdraws from the tournament, the only people who seem to remember her existence are Aya and Natsume.
%%* VillainsNeverLie
* WasItAllALie: [[spoiler:[[WesternAnimation/PhineasAndFerb Yes, yes it was.]]]]
* WellIntentionedExtremist: [[spoiler:Aya summarily executing Natsume's mother puts her into this territory, since she wants to make sure the {{cycle of revenge}} that has driven this series is finally put to an end.]]
%%* WhamEpisode: Battle 5.
* WhamLine: At the very end of episode 5.
-->'''Aya's mother:''' I see. The crystal is not completed yet.
%%* WrenchWench
* YouBastard: Begins {{s|arcasmMode}}ubtle, with the depiction of an Otaku audience at a Moe Idol show, [[ThisLoserIsYou watching the Panty Fight]].
%%* WorldOfActionGirls