[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/metal_heart1.png]]
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''Metal Heart'' (메탈하트) is a manhwa by YOON Jae Ho

Minwoo Hyun is a normal 11th grade student with a dating skill of a jam jar, who is a game maniac crowned as the best gamer in the country, with unparalleled skill in fighting games. A few days after an accident during a fighting game called ''Metal Heart 2'' that Minwoo has played by coincidence, the heroine of the game, Sia Min, appears right before Minwoo's eyes! (In reality, a mega-corporation called [=MegaTech=], maker of ''Metal Heart 2'', has employed a battle android into the real world to collect data.)

However, because of the 'incident', Sia has a personality of a girl from a dating sim game, and she thinks Min Woo is the main character of that dating sim game. It's hinted that something bad is going to happen if Sia gets jilted by Minwoo. So Minwoo reluctantly accepts this 'unique' situation and with the help of [=MegaTech's=] special agent Nuri Han, playing the part of Minwoo's 'childhood friend', they begin their adventure to make Sia's dream come true!

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!!''Metal Heart'' provides examples of:

%%* AccidentalPervert: Minwoo
%%* AmbiguouslyBrown: Nova
%%* AnimalMotifs: Nova acts catlike.
%% * AwesomenessByAnalysis: Minwoo from fighting games he can advise others on how to win.
* BarbieDollAnatomy: Sia is missing certain features but this is justified since she's an android.
%% * BladeBelowTheShoulder: G-Man has these.
%% * BlandNameProduct: The Y-BOX.
%% * BrainwashedAndCrazy: Kinda, Fairy made the other students lose themselves on their desires.
* TheBully[=/=]HeelFaceTurn: Before Inhyuk became friends with Minwoo, he used to be his main bully until Minwoo saved Inhyuk from a big guy by beating him with a broken fighting game machine.
%% * TheCameo: In the first chapter there are a lot of characters being cosplayed from Manga and Manhwa during the cosplay festival.
%% * CannotSpitItOut
%% * CarryABigStick: Fairy DualWielding two maces [[NamedWeapons called]] Morning Star that she keeps in her hair as weapons.
%%%% * ClothingDamage
%% * Contrived Coincidence: Minwoo's life is similar to the background of the game ''Metal Heart +''.
* CooldownHug: Sia gave Nova one after the later lost to her and entered a SuperPowerMeltdown.
%%%% * CoolShades: G-Man wears these.
%%%% * {{Cosplay}}
%%%% * CrashIntoHello
%% * {{Crossdresser}}: Yura Hong does this an attempt to sneak in the boys locker room to take pics.
%%%% * CrossPoppingVeins
* CurbStompBattle: Any one of the EA series vs. [[RedshirtArmy tanks, [=MegaTech=]'s personnel, the US Navy, and/or a hoard of students]]. No casualties but a lot of broken bodies and equipment.
%%%% * CuteClumsyGirl: Arum, the homeroom teacher.
%%%% * CuteKitten
* CuteWitch: Fairy is a pigtail-wearing witch[[note]]she is actually an EA unit like Sia[[/note]] who owns a FlyingBroomstick named Tock that acts like her MagicWand.
* DatePeepers: Mina and Yura did this to the group date of Minwoo, Sia, Inhyuk, and Nuri for their own reasons.
* DatingSim: The {{Genre}} of the ''Metal Heart +'' game that is what ''Metal Heart 2'' was based on and the type of game Minwoo is bad at and now has to play a real life version of it with Sia.
%%%% * DeathGlare
%%%% * DisappearedDad
%% * DistressedDude: Minwoo became one when Nova kidnapped him in order to use him as bait for Sia.
%% * ElegantGothicLolita: What Nuri used to wear when acting like a DaddysGirl.
* EmbarrassingNickname: Goonyung Song's is Dong Gu Mong which means 'anus' and [[BerserkButton hates being called by it]].
* ExecutiveMeddling: An in-universe example to help Minwoo with Sia but there are others in [=MegaTech=] who are not as patient and sends the other EA units to fight with Sia in order to retrieve her.
%%%% * ExplosiveInstrumentation
%%%% * EyePop
%%%% * FaceFault
%%%% * {{Fainting}}: This happens to Nuri and Yura at one point.
%%%% * {{Fanservice}}
%%%% * FemaleGaze
* FightingGame: The genre of the games ''Metal Heart'' and ''Metal Heart 2'', the type of games Minwoo is best at.
%% * GirlishPigTails: Nova and Fairy have this hairstyle.
%% * GirlNextDoor: Nuri, after she bought out the neighboring house next to Minwoo's home.
%% * GivingSomeoneThePointerFinger: Nuri gave this to Minwoo and Sia.
* GogglesDoSomethingUnusual: Minwoo was given special glasses by [=Megatech=] to help him by [[CommLinks transmitting information]] to him.
%% * DroppedGlasses: The first pair was broken like this.
* GoodAngelBadAngel: Minwoo had this when he was thinking over whether or not he might be inconveniencing the girl he made cosplay as ''Metal Heart 2's'' heroine, Sia.
* GroinAttack: [[BruceLeeClone Brute Lee]] was victim of this when he tried to fight Sia to make her join the Kung Fu Club. His legs were shorter than hers.
%% * {{HotTeacher}}: The main characters' homeroom teacher, Nuri's cousin, Arum.
%%%% * IdiotHair: Sia has this.
* IgnoredEnemy: Sia ignored Park Chanoh's pitch, Anaconda King, because she does not see the point in hitting it.
%%%% * IJustWantToBeNormal: What Sia wants.
%%%% * ImagineSpotting
%%%% * ImmuneToBullets: The Ea series.
* ImportantHaircut: Nuri used to have long hair until [[spoiler: after her mother died and before she asked her father the reason why the people tried to kidnap her.]]
%%%% * InstantSedation
* ItsNotYouItsMyEnemies: Sia tried this to get away from Minwoo to protect him but he convinced her stay.
%%%% * JawDrop
%%%% * JerkJock: Goonyung Song
* KidWithTheRemoteControl: Nuri is this for Minwoo's protective vest. Minwoo is implied as this for Sia during "battle mode".
* LethalChef: Nuri, her attempt at a lunch for Minwoo is [[{{Pixellation}} censored]] with the only recognizable ingredients are a twig and tentacles.
%% * LittleMissBadass: Nova
%% * LuminescentBlush
* MagicFromTechnology: Fairy has a broomstick that has the ability to enhance anyones desires in order to make them lose their judgment.
%%%% * MaleGaze
%%* MartialArtsStaff: Nova's weapon is a three section staff.
* MegaCorp: [=MegaTech=], the creator of the ''Metal Heart'' series, who have other divisions besides the game industry like a weapons R&D.
%% * MeasuringDay: [=MegaTech=] high-jacked it in order to hide the fact that Sia was a robot girl. Then things get from bad to worst.
* MissingMom: [[spoiler: Nuri's mother died.]]
%% * MissionControl: Nuri acts like this sometimes for Minwoo.
* MistakenForGay: Goonyung Song thought this for himself after a misunderstanding after he lost to Minwoo in judo.
* NewTransferStudent: Sia and Nuri both transfer to Minwoo's high school. [[spoiler: Nuri actually used to go to the same school the year before but transfered out due to some "complexities".]]
%% * {{Nosebleed}}
* NotWhatItLooksLike: Many instances
** Mina walked in when Nuri was trying to remove Minwoo's underpants.
** When Nuri went to check on Minwoo in the chamber she saw Yura fainted on top of him.
** One year before the start of the story, Inhyuk walked in the infirmary and saw Yura on top of an unconscious Minwoo taking off his clothes.
%%%% * OrdinaryHighSchoolStudent: Minwoo.
%% * {{Otaku}}: Minwoo and Inhyuk. Inhyuk is bit more lucky when it comes to the opposite sex except with Nuri.
%% * PaperThinDisguise: G-Man uses this, Minwoo and Nuri see right through it even if anyone else does not.
%% * ParentalAbandonment
%% * ParentalSubstitute: Mina, who takes of the place of their mother despite being his younger sister.
* PoweredArmor: In the minimal sense, [=MegaTech=] gave Minwoo [[BulletproofVest body armor]] to protect him from impacts and has a [[ShockAndAwe shock]] [[HarmlessElectrocution feature]] that Nuri has the [[KidWithTheRemoteControl remote control]] to, in order to [[MagicalDefibrillator revive]], help, or [[ElectricTorture punish]] him.
* PowerGivesYouWings: The EA units gain these during their SuperMode[=/=]SuperPowerMeltdown.
%% * PuppyDogEyes: Minwoo does this to Nuri.
* RidiculouslyHumanRobot: Sia and the other EA units. They think they are the characters from the game and don't even know that they themselves are robots.
* RightBehindMe: Minwoo tells Inhyuk how he plans to make Mina cosplay as Sia, but Mina heard him.
%% * RobotGirl: Sia and the other EA units.
%% * SatchelSwitcheroo: How the games ''Metal Heart +'' and ''Metal Heart 2'' were mixed-up.
%% * ShipperOnDeck: Nuri as she's working on getting Minwoo and Sia together.
* ShowerOfAwkward: The day after Nuri's house burned down, Minwoo saw her in this situation when he entered the bath after he woke-up.
* Sibling Terminology: Mina calls her brother Minwoo "''oppa''", Korean for brother.
* SomethingElseAlsoRises: [[http://www.mangafox.com/manga/metal_heart/v03/c014/17.html This happened because Yura was too close to Minwoo while trying to find a way out.]]
* SuperWindowJump: Nova was in a jug that smashed through the shop's window before she broke out of it.
* SpellMyNameWithAnS: Due to the rather inconsistent roman spellings for Sia's name, it comes out as Sia, Shiah or Siah.
%%%% * SweatDrop
%% * TakingTheBullet: [[spoiler: How Nuri's mother died.]]
%% * ThereCanOnlyBeOne: The backstory of the ''Metal Heart'' game.
* TronLines: The EA series have them on their body when they go SuperMode.
%%%% * {{Tsundere}}: Nuri
* VerbalTic: Nova ends her sentences with "nya."
* YouAreNumberSix: Sia is number in 7 the EA series. Nova is number 5.
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