[[quoteright:300:[[VisualNovel/AoiShiro http://static.tvtropes.org/pmwiki/pub/images/Nami_Aoishiro_7300.jpg]]]]
A subtrope of MysteriousWaif. Stereotypical party member in many [[RolePlayingGame [=RPGs=]]]. The Mystical Waif is usually a physically young girl (although she may be ReallySevenHundredYearsOld) with a mysterious, plot-relevant past (often symbolized by an OrphansPlotTrinket). The bad guys usually want to exploit her powers to control/destroy the world, while the heroes want to save her out of chivalry or general contrariness. Often magically inclined. Usually the last scion of some mysterious, previously unknown society or race, and not uncommonly the [[LastOfHisKind last of her kind]]. She usually joins the party eventually, although she may spend some time as a DamselInDistress before then.

Personality-wise, the Mystical Waif is usually pure-hearted and kind, although she can seem distant at times. She is also extremely naive about the world, and unfamiliar with even the most basic facets of the characters' lives. That is, she has NoSocialSkills -- which can be PlayedForLaughs in the more light-hearted parts. Occasionally she'll begin the game not being able to speak the main characters' language. She can be selfless to the point of [[HeroicSacrifice self-sacrifice]] at times. Sometimes she provides exposition -- the introduction of the Mystical Waif (or the revelation of her true identity or purpose) is often what propels the plot from random adventuring to serious world-saving, as she recruits the rest of the party to help her [[GottaCatchThemAll collect the crystals]].

Sure signs you're dealing with a Mystical Waif are odd hair colors; weird (by the standards of the game world), often futuristic-themed clothing; magical powers; blank, serious facial expressions; lots of [[VisibleSilence ellipses]] in her speech; and an inordinate amount of attention from the villains. Even if it's blatantly obvious that she has some significant role in the EvilPlan and/or something to hide, the other characters will often not press her on it.

Gameplay-wise, the Mystical Waif is almost always magic-oriented. She often overlaps with the WhiteMagicianGirl, or if more proactive, as BarrierWarrior or SquishyWizard. She'll have weak physical stats, but strong magical stats and average-or-better speed. Her quality as a game character is almost entirely tied up in how powerful her attack spells are and whether anyone else has the ability to heal. Lots of Mystical Waifs spend a lot of time on the bench, fighting either not at all or only against bosses where constant healing is required.

If the game allows the main character to develop a romance, the Mystical Waif is almost always a contender - [[OfficialCouple if not the only one]].

See also WaifProphet, OracularUrchin, JustForFun/MysteriousWaifTan.
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!!Examples

[[foldercontrol]]

[[folder:Anime & Manga]]
* Despite not being a video game character, Hotaru Tomoe/Sailor Saturn from ''SailorMoon'' seems to have many characteristics of this trope. She is mysterious, ready for a self-sacrifice, and wears unusually dark clothes; she also has several mysterious powers even outside of her Sailor Senshi identity (although many of the other girls did too). Her situation is somewhat different, as there are [[EvilerThanThou three sides]] involved: Sailor Moon, who wants to save her; the Guardians of the Outer Solar System, who want to get rid of her as she poses a threat to the world; and the evil Death Busters, who want to destroy the world with her help. A couple seasons later, she joins the main cast, and her powers overlap somewhat with those of the WhiteMagicianGirl CoolBigSis, Sailor Pluto.
* Yagami Hikari from DigimonAdventure and DigimonAdventure02, the human lightbulb. Also an IllGirl, she is the only one to have a Crest (Light) that ''doesn't'' refer to an innate virtue or trait. The powers of this Crest usually manifest themselves in weird ways, and she has been shown as both 1) unusually self-sacrificing and 2) drawn to the Dark Ocean, because of her powers and walled-in emotional problems. She's also empathetic to the point of being borderline psychic, which sends her into two {{Heroic BSOD}}s in 02 (and during the last one, her best friend Miyako has to [[GetAHoldOfYourselfMan literally bitchslap her]] back to sanity).
* Reverie "Ren" Metherlence of ''ElementalGelade'' is a mysterious and legendary weapon who is frequently rendered helpless and constantly protected by the main character.
* The manga based on the VideoGame/GalaxyAngel gameverse gives Chitose a bit of this.
* Kisara of ''Anime/YuGiOh'', the white-haired and blue-eyed Egyptian and homeless, quiet, vaguely psychic, mysterious keeper of the spirit of the Blue-Eyes White Dragon who [[HeroicSacrifice sacrificed herself]] to protect the only person who ever showed her kindness, High Priest Seto...
* Vivio of ''MagicalGirlLyricalNanoha'', the main character's adopted 6-year old daughter who has differently colored eyes and was found trudging through the sewers while chained to a pair of cases containing [[MacGuffin Relics]]. She turns out to be [[spoiler: [[CloneJesus the clone of the Sankt Kaiser]], required by the BigBad to activate the [[KillSat Saint's Cradle]] and packing enough power to match Nanoha blow for blow]].
** Also, Ixpellia from [[AllThereInTheManual the CD dramas]].
* Sheeta of ''Laputa: CastleInTheSky''.
* Melfina from ''OutlawStar''.
* C.C. from ''Anime/CodeGeass''. Personality wise she's more of a DeadpanSnarker, though, and can't be considered exactly naive.
** [[spoiler: Except when she loses her memory, then she fits the trope perfectly.]]
* Tiffa Adil from ''[[Anime/AfterWarGundamX Gundam X]]''.
* Arguably, Lalah Sune from the original ''MobileSuitGundam'', though she counts a bit more as WaifFu since she's one really powerful Newtype ''and'' a skilled pilot.
* Rei from ''Anime/NeonGenesisEvangelion''.
* Nia Teppelin from ''TengenToppaGurrenLagann''.
* Chi from Manga/{{Chobits}} is an almost perfect example of this trope.
* Asuna Kagurazaka from ''MahouSenseiNegima''. The only exception is that she is rather {{tsundere}}, but shows the canonical catatonic personality in flashbacks.
* Alvis Hamilton from ''LastExile'' epitomizes this trope in every way, as "the key to the [legendary ship] Exile."
* Yukina from ''YuYuHakusho'' appears young but, like her brother Hiei, is a demon and therefore may be much older than she appears. She is pure-hearted, kind, distant, naïve, and has blue (or, arguably, sea-green) hair. She is targeted by villains either for her gem-making powers (They come from her tears! Awwww!) or because the main characters care about her and she is no ActionGirl. She occasionally serves as [[TheMedic the group's healer]], due to her abilities in that field.
* Lala Ru from ''NowAndThenHereAndThere''. Ironically, she is neither pure-hearted nor kind. In fact, [[spoiler: she hates all of humanity due to the utter HELL they put her through, and refuses to save the planet even though she has the power to do so]]. [[HeelFaceTurn Until later]], of course... but [[TearJerker even then]], you [[DeathIsASadThing wish]] she [[BittersweetEnding hadn't]].
* Kagura Tennozou from SpeedGrapher.
* The titular Eureka from ''EurekaSeven'', though, like Ms. Sune further up the list, she's quite the accomplished pilot.
* [[spoiler: Marie Parfasy]] from ''{{Gundam 00}}''. Subverted when she grows up into [[spoiler: DarkActionGirl Soma Peiris.]]
* Anthy from RevolutionaryGirlUtena fits this description quite well in her manga incarnation.
* Quon from ''RahXephon''.
* Sulia Gaudeamus in the FatalFury Motion Picture.
* Very rare male example: Kakyou Kuzuki from {{X 1999}}.
* Neya from ''InfiniteRyvius''.
* Alice from ''Manga/KingOfThorn''.
* Cheza from WolfsRain
* Wendy from ''Manga/FairyTail'' has elements of this, including a MysteriousPast, bad guys wanting her (in the case of Brain), non-action status, bit of a DistressedDamsel, purehearted and kind, and TheMedic.
* Young Neese from ''RecordOfLodossWar'' could be the poster girl for this trope. Her mother Leylia played a similar role in the OVA series, but is actually very tall.
* This is one of the standard fantasy plots ridiculed by ''YuruYuri'', with "the girl who fall from the sky".
* Ophis "[[NamesToRunAwayFromReallyFast The Infinite One]]" in ''HighSchoolDXD'' is this. All she wanted was to kick [[TheRival Great Red]] out of the Dimension Gap and she became the PuppetKing of Chaos Brigade just to fulfill her wishes. [[spoiler: And then she joins Issei with most of her powers gone.]]
[[/folder]]

[[folder:Fan Works]]
* One of the very first ''Star Trek'' fan clubs, "Spock's Scribes", published a journal with satirical fan fiction about young women passengers on the ''Enterprise'' who cause trouble. Spock's human cousin Samantha Scott, written by the only adult member of the club, was definitely one of these. The daughter of Amanda's sister Amelia and a Dr. James Scott (no relation), both physicians on planet XX Larid, she was RaisedByNatives after her parents died in an earthquake, and picked up PsychicPowers from them. She caused and attracted random chaos on the ship.
[[/folder]]

[[folder:Films -- Live-Action]]
* Leeloo, the title character of ''Film/TheFifthElement'', though she doesn't exhibit any magical powers [[spoiler:(at least until the end when she destroys the BigBad)]]. She does mix it up with Zorg's {{mooks}} with some mean WaifFu, however.
[[/folder]]

[[folder:Literature]]
* Flute, in the ''{{Elenium}}'' trilogy by David Eddings, is a small girl who is revealed, slowly, to have greater magical powers than anyone else in the party. She can control time and animals, among other things. Eventually [[spoiler:they find out that Flute is actually the goddess Aphrael]], which explains everything.
* Luna Lovegood in ''Literature/HarryPotter'' Last of her line. Mother died when she was 9. Orphan's plot trinket = Butterbeer cork necklace and Dirigible plum earrings. Also pure-hearted and kind, distracted at times, weird, persecuted, absolutely adorable!
** Even more so in the (comparatively) prominent fan fiction ''The Book of Morgan Le-Fey'', where she is [[spoiler: the last heir of Morgan Le-Fey]] and hunted by the big bad.
*** Even more than that is in the fic, half kissed hero, in which she is the descendent of every major female fairy tale heroine
** Don't forget that she turns out to be pretty darned good at magic herself and can notice things that others don't.
* ''Literature/HouseOfManyWays'' features a little white dog who is actually ''named'' Waif, who had been living with Charmain's great-uncle William (Wizard Norland) for a short time. Waif is no ordinary dog, but a rare, magical enchanting dog. Later, we find out that Waif actually is the latest generation of the Elf Gift, which (or, as it turns out, who) is supposed to protect the royal family of High Norland. However, unlike most examples, besides having magical powers Waif does not act very mystical, but like an ordinary dog, who begs for scraps, overindulges on human food, and clings to Charmain who she has adopted as her owner.
* ''Literature/TheDresdenFiles'': Through a horrifying series of events, the mantle of [[BadassBookworm The Archive]], the repository of all knowledge, was set upon a young girl. She can give a showing for herself in magical brawls set up as a trap for her personally.
* In Creator/TerryPratchett's ''Literature/{{Discworld}}'' novel ''Monstrous Regiment'', Wazzer Goom fits this trope, as the brutalised girl who becomes the spiritual channel for communications with the long-dead Duchess of Borogravia.
[[/folder]]

[[folder:Live-Action TV]]
* Maia, the child with the ability of Precognition from ''Series/TheFortyFourHundred'' fits many of the characteristics of this trope, with her slightly creepy otherworldliness (and, of course, her potentially important ability).
* River Tam from ''Series/{{Firefly}}'' is the youngest member of the crew of ''Serenity'', and aside from being a peerless genius and psychic, she apparently can [[GunKata shoot people without even looking]] and [[WaifFu defeat small armies of berserk space pirates in hand-to-hand combat]] without trouble.
* Kes from ''Series/StarTrekVoyager'' though her past is well-explained (if not her subsequent FaceHeelTurn) given that she's only lived a couple of years when the crew encounters her.
[[/folder]]

[[folder:Tabletop Games]]
* ''{{Exalted}}'':
--> Once, there was a maiden...
--> ...who fled a shadow, in the company of a friend.
--> They traveled through strange places, and among strange people.
--> “How can you trust me,” he asked, “with such horror behind you?”
--> “Love endures,” she said.
--> --''The Scripture of the Bride''
[[/folder]]

[[folder:Video Games]]
* ''VideoGame/{{Aveyond}} 3: Gates of Night'' - Stella.
* Fina from ''VideoGame/SkiesOfArcadia'', despite being a fairly recent character, defines this trope to a "T", hitting almost all the major aspects. She dramatically subverts one part however; she's the least powerful attacker for 99% of the game, until her EmpathyPet is upgraded to his final form, which has the highest attack power of any weapon in the game.
* Meredy from ''VideoGame/TalesOfEternia''.
* Grune from ''VideoGame/TalesOfLegendia'', who spends most of the game as a {{Cloudcuckoolander}} with NoSocialSkills thanks to LaserGuidedAmnesia.
* Reala from ''VideoGame/TalesOfDestiny2''.
* Richea from ''VideoGame/TalesOfHearts'', who is ReallySevenHundredYearsOld.
* Xelha from ''BatenKaitos: Eternal Wings and the Lost Ocean''.
* Nina from ''BreathOfFire: Dragon Quarter''. Her backstory was so creepy that parts of it were [[{{Bowdlerise}} removed from the US version]].
* From the ''Franchise/FireEmblem'' series:
** Ninian from ''[[VideoGame/FireEmblemElibe Blazing Sword]]''.
** Micaiah from ''[[VideoGame/FireEmblemTellius Radiant Dawn]]''. Partially subverted, Micaiah being the leader of her army and the first main character of the game.
*** Leanne too. Probably fits the trope a little closer.
** And Myrrh from ''[[VideoGame/FireEmblemTheSacredStones The Sacred Stones]]''... and Fa from ''[[VideoGame/FireEmblemElibe Sword of Seals]]''... okay, ''Fire Emblem'' is really guilty of having nine year old {{Animorphism}} MysteriousWaif girls that are ReallySevenHundredYearsOld.
** The two Shaman of ''[[VideoGame/FireEmblemJugdral Genealogy of the Holy War]]'', Deirdre and Julia also fit.
** Tiki, the young [[ScaledUp Manakete]] girl from the original ''VideoGame/{{FireEmblem|Akaneia}}'' and its remake, ''Shadow Dragon''. Also, Nagi, another female Manakete seems to be an older version of this trope.
* Garnet from ''VideoGame/FinalFantasyIX'' -- [[LastOfHisKind One of only two remaining summoners]].
* Aerith from ''VideoGame/FinalFantasyVII'' -- [[LastOfHisKind Last of the Ancients]].
** Played with: she has many 'mysterious waif' traits, but her backstory is revealed even before the main character's, and she refuses to be treated like a damsel in distress (even insists on accompanying the hero because it's too dangerous ''for him'' to travel alone).
* [[spoiler:Ellone]] from ''VideoGame/FinalFantasyVIII'' - mysterious past, flowing robes, special powers desired by both sides.
* Terra from ''VideoGame/FinalFantasyVI'' -- HalfHumanHybrid of an Esper (the summons).
** She's not a subversion of this trope, but she takes it in an [[MamaBear unusual]] direction. {{MysteriousWaif}}s are not normally known for PlayingWithFire, [[ActionPrologue storming someone's beloved peasant village]], and being one of ''three'' PlayerCharacters able to wield the heaviest weapons and armor in the game...
* Rydia from ''VideoGame/FinalFantasyIV'' -- [[LastOfHisKind Last of the Summoners of Mist]]... [[NiceJobBreakingItHero thanks to the main character]].
* Although she isn't playable, Zelda from the ''Franchise/TheLegendOfZelda'' series often fits this trope in most other respects.
* Visas Marr from ''Franchise/{{Star Wars|Expanded Universe}}: VideoGame/KnightsOfTheOldRepublic 2'', though older than the archetype, otherwise fits this: she is sole survivor of the destruction of her planet, her species (Miraluka) are blind normally but "see" using the Force, and she speaks in strange ways. [[spoiler:She can be sacrificed, if the player chooses to do so.]]
* Sera from ''DigitalDevilSaga'' and ''Digital Devil Saga 2''.
* Aeon in ''MSSaga'' fits this trope to a T.
* ''VideoGame/{{Xenogears}}'' gives us Emeralda, who in addition to being ReallySevenHundredYearsOld is a VoluntaryShapeshifter. She fits this trope so perfectly, it's damn scary.
* Isabella/Catleia from ''AdvanceWars: Days of Ruin.'', though being from a strategy game she obviously doesn't have the RPG stats part of the trope, being instead a decent all-round CO with a GameBreaker CO power.
** Not to mention she serves as a plot-relevant character in the campaign mode.
* MOMO from ''VideoGame/{{Xenosaga}}'' is pretty much the poster child for this trope, although it is subverted very slightly in that she's actually the prototype for her kind, instead of the last.
* ''VideoGame/ArcTheLad: Twilight of the Spirits'' plays this straight in Lillia, and also includes a somewhat bizarro version in the demon puppeteer Bebedora.
* ''VideoGame/MegaManLegends 2'' has Sera, who plays the part perfectly, until [[spoiler:after you collect the keys, when she takes over the ship and reveals herself to be the villain of the game.]]
* [[spoiler:Iris]] (Her name is the spoiler, not that she is a MysteriousWaif) of ''VideoGame/MegaManBattleNetwork 6''
* Luna, from ''VideoGame/LunarTheSilverStar''.
** The sequel, ''VideoGame/LunarEternalBlue'' has Lucia.
* Alouette from ''[[LaPucelle La Pucelle Tactics]]'' hits enough of the required traits to fit here. Although not the last of her kind, she is found with amnesia, is mostly good with magic (although, as with all NipponIchi games, you can customize her as you like), is self-sacrificing and [[spoiler: is the current Maiden of Light, even if she doesn't know it, which is a powerful position held only by one woman at a time and chosen directly by the Goddess.]]
* Avril from ''VideoGame/{{Wild ARMs 5}}'' hits almost every single criteria for this trope. Silver hair, serious expression, unfamiliarity with customs, amnesia, sought by the antagonists, good with magic (although this is customizable), and [[spoiler: ReallySevenHundredYearsOld]].
* Possibly Naminé from ''KingdomHearts: ChainOfMemories'' and ''KingdomHearts 2''.
** [[KingdomHearts358DaysOver2 Xion]] may also count as an example.
* Sheba in ''VideoGame/GoldenSun'' and ''VideoGame/GoldenSun: The Lost Age'', which is part of the reason why she's popular with the fandom. You know, for all the EpilepticTrees. Note, however, that unlike most examples of this trope, she's pretty snarky around people she's comfortable with.
* [[VideoGame/TheLegendOfZeldaTwilightPrincess Midna]] fits the "mysterious" and "plot trinket" part, and she ''looks'' like a young girl, or more accurately a young demoness. Unlike the standard Mystical Waif, though, she is very, very snarky.
* Alicia from ''VideoGame/ValkyriaChronicles'' fits many of the traits from this trope, but it's all evened out by the fact that she's also an incredibly BadAss ActionGirl.
* Rena Lanford from ''Videogame/StarOceanTheSecondStory'' also fits here.
* ''{{Lufia}}'' herself (and her analogues in the other games). She [[spoiler:is kinda out-of-place in human society because she's actually a Sinistral, and the other Sinistrals want her to help them stay alive and do evil things, of course. She is also portrayed as cute, innocent, and a love interest of the hero, and of course, has lesser physical stats but uses magic well.]]
* Yorda from ''VideoGame/{{Ico}}''
* Subverted in ''VideoGame/PhantasyStarIII'' with Maia, who is a mysterious, solemn, white-haired maiden who washes up on the beach, has no recollection of her past, and gets abducted by a dragon on her and [[TheHero Rhys]]' wedding day. Turns out the dragon is her shapeshifted brother, her amnesia was entirely mundane, and there's nothing unusual about Maia herself except that, [[EverythingsBetterWithPrincesses of course, she's a princess.]] She doesn't even use magic.
* Julius from ''VideoGame/SwordOfMana'' is a very rare example, seeing as he's male (even if he [[CampGay doesn't always]] [[VillainousCrossdresser act it]]) and an antagonist to boot. He's still the LastOfHisKind, exclusively uses magic, has a MysteriousPast, and is integral to the plot of the villain, who [[spoiler:[[TheVirus out-and-out]] [[HijackedByGanon hijacks his body]]]] eventually. His... uh, ''[[HoYay friend]]'' Dark Lord (the other main antagonist) seems to know exactly who and what he is and is implied to be sheltering him from the prejudice of the world while simultaneously [[MoralityChain keeping him from falling completely to evil]].
** Thankfully, Julius doesn't have the stereotypical MysteriousWaif personality; he's a snarky, cheerful {{Yandere}} who ordinarily likes to spend his time picking on the heroes and being kept out of trouble by Dark Lord. [[spoiler:Once he becomes Vandole, his personality changes pretty drastically, though.]]
* Shana from ''VideoGame/TheLegendOfDragoon'' reeks of this trope. First she gets kidnapped and put in jail, then she turns out to [[spoiler: be the moon child who will destroy the world.]] She exhibits the personality traits of this trope down to the letter.
* Linear from ''VideoGame/EvolutionWorlds''.
* Despite being male, Joshua from ''VideoGame/TheWorldEndsWithYou'' is a good example of this trope. [[spoiler: He randomly makes a pact with Neku, is arguably ReallySevenHundredYearsOld, and in a twist ending turns out to be the BigBad, who does a HeelFaceTurn [[TheUnfought after the final boss.]] ]]
* Sophie in ''VideoGame/TalesOfGraces''. Mysterious, plot-relevant past? Check. NoSocialSkills? Check. Futuristic clothing? Check. Lilac RapunzelHair? Check. [[LightningBruiser She's everything]] ''[[LightningBruiser but]]'' [[LightningBruiser physically weak though.]]
* Anne in ''VideoGame/MitsumeteKnight''. No wonder when you're a [[spoiler: CuteGhostGirl]] with heavy backstory, [[YouGottaHaveBlueHair blue hair]], mysterious atmosphere, and crucial importance to the heroine's and the game's storyline.
* ''VideoGame/KingdomOfLoathing'' parodies this with the Quiet Healer, who often drops the Amulet of Plot Significance.
* Leanne from ''VideoGame/ResonanceOfFate'' fits the trope plot-wise, but gameplay and personality-wise she's an ActionGirl.
* Similarly, Rose from the ''Franchise/StreetFighter'' series is both this and a LadyOfWar. Not to mention, while she has a kind heart, she's more aloof and cool than the standard.
* Wild Flower from ''VideoGame/JadeEmpire''. As if you couldn't tell just from the name.
* Rosalina, at least in ''VideoGame/SuperMarioGalaxy'', with her tragic backstory and enigmatic nature. Her other appearances eventually avert this, revealing she's quite a bit more [[GlacierWaif resilient]] and [[NotSoStoic playful]] than most examples.
* Kanna from ''VideoGame/ThreeTheHardWay'', the ReallySevenHundredYearsOld alchemist, who is mysterious, secretive, and enigmatic in personality, and seems to know the BigBad quite well. Gameplay-wise, she's a unique character with a relatively low physical ''and'' magical abilities, but can create and have access to alchemical weapons that can easily decimate Bosses. Despite being relatively useless in normal battles, one of the strongest party member actually remarks that they don't stand a chance against the BigBad without her.
[[/folder]]

[[folder:Visual Novels]]
* The very young looking Nami from ''VisualNovel/AoiShiro'' (pictured above) who has amnesia and mysterious [[HealingHands healing powers]].
[[/folder]]

[[folder:Web Comics]]
* Jonas of ''WebComic/ThePhoenixRequiem'' is a rare male example.
* Melissa in "Fortissima's Treasure Hunters". She was apparently encased in a large green crystal for several generations, is able to shoot fire from her fingers, speaks a backward language (literally! The words in her speech balloons are spelled in reverse), and her eyes glow when she sleeps. I'll wager that there's plenty more we haven't learned about her yet...
* In many ways, Oasis from ''SluggyFreelance'' is what you'd get if you trained her as an assassin and {{Brainwashed}} her into having a {{Yandere}} style crush.
* Silvia at first in ''Webcomic/GoldCoinComics''.
* RumorsOfWar has Occela, who fits most of the requirements for MysteriousWaif and MysticalWaif. Not sure yet if she's a WaifFu practitioner.
[[/folder]]

[[folder:Web Original]]
* Quito Power in the LeagueOfIntergalacticCosmicChampions.
* Our very own JustForFun/MysteriousWaifTan.
[[/folder]]

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