[[quoteright:350:[[VisualNovel/SchoolDays http://static.tvtropes.org/pmwiki/pub/images/redstring6_8448.jpg]]]]
[[caption-width-right:350:Now available in a [[LoveTriangle three way version]], for when one destined love interest just isn't enough.]]

->''Take the guesswork out of love.''
->-- ''Film/{{TiMER}}''

More than LoveAtFirstSight, more than simply two Soulmates destined to be together, the RedStringOfFate is some perceivable clue that identifies your destined True Love.

The trope namer is an East Asian belief originating from Chinese legend called the Red String of Fate (''akai ito'' or ''unmei no akai ito''). The concept is that two people who are destined to be together are attached by an invisible red string bound from a male's thumb to a female's pinky finger (though nowadays it's become more common to show ''both'' parties attached at the pinky).

But the RedStringOfFate need not be a literal red string. It could be a timer counting down to alert you at the exact moment that you meet the perfect person for you. It could even be an unusually meaningful birthmark showing your destined’s name in their own handwriting. But whether magic or {{Magitek}}, whether you’re born with it or have to have it installed, whether it actively pulls you together or serves only as a passive identifier, the match it suggests for you is your True Love BecauseDestinySaysSo.

Warning: [[StrangledByTheRedString Choking Hazard]]. May be related to the PinkySwear. Usually involved in ReincarnationRomance. See also FateDrivesUsTogether and ForgottenFirstMeeting. Compare LoveBeforeFirstSight and MindlinkMates.

----
!!Examples:

[[foldercontrol]]

[[folder:{{Anime}} and {{Manga}}]]
* The concept is used for comedic effect in the ''Anime/TenchiMuyo'' series ''TenchiInTokyo'', where Tenchi is connected by red strings to just about every major character. For the unlearned, that's [[HaremSeries around 7 strings total]]. There's a reason MarryThemAll used to named after him...
* ''Manga/RanmaOneHalf'':
** In one episode, Shampoo attempts to use an actual magical red string to bind Ranma to her romantically.
** Another variation occurs in a late manga story revolving around the {{Tanabata}}, where Ranma and Akane will supposedly be destined to marry if two leaves with their names on them remain intact and bound together, but they will never be if either one is destroyed. Cue Ranma having to go through hell, including [[LordErrorProne Tatewaki Kuno]] suddenly coming out of nowhere with a steel-bladed katana, to ensure that the leaves aren't destroyed or tied to the leaves of other people.
** In the song "November Rain" from one of the albums (which is basically an angsty subversion of the UmbrellaOfTogetherness trope), the lyrics strongly imply that Ranma and Akane are bound together by the Red String of Fate, even though it is currently, as Ranma puts it, "loose."
* Toward the end of the ''Manga/UruseiYatsura'' movie "Remember My Love", notorious lech Ataru is shown to have multiple red strings attached to every one of his fingers. It's implied that he might ''like'' to be faithful to Lum, but...
* In episode 5 of ''Anime/ExcelSaga'', "The Interesting Giant Tower", Watanabe is surprised (and annoyed) to find his roommates applying for jobs at the same office building he's gone to, and Iwata quips "We must be joined together by the invisible red string of destiny!" Watanabe flips and hits him, declaring, "The red string is for boys and girls only!"
** In the same episode, Watanabe finds that Hyatt, his love interest, is at the same place selling refreshments. She gives him a drink for free, and as she walks away, Watanabe muses, "...the red string!" Sumiyoshi looks at the drink and remarks, "It's green."
** SpiritualSuccessor OVA ''PuniPuniPoemi'' parodies this with Poemi, who's attached to her friend Futaba. At that moment, Futaba and her sisters are being taken hostage by [[MarsNeedsWomen incredibly horny aliens]], and as they get dragged away in a net, Poemi is forcibly dragged to them herself. Poemi then follows the red string tied to her finger to find her friend.
* A Red String appears in a flashback of Juri's recollections of her time spent with Shiori and an unnamed male character in ''Anime/RevolutionaryGirlUtena''.
* In an episode of ''ChouKuseNiNarisou'', a gay teacher who mistakenly develops a crush on Nagisa suggests to her that there's a RedStringOfFate connecting them. Nagisa can actually ''see'' the string, and yells at the teacher to cut it out....
* A Red String is used as an unseen force in ''Manga/AiYoriAoshi'' that binds Aoi and Kaoru together. It was part of the premise that their relationship is so unshakable that neither Kaoru's [[HaremGenre Harem]] nor Aoi's old fashioned and powerful family can pull them apart. It was featured in the opening sequence and referred to as Enishi (The bonds that tie) in a conversation between Aoi and Kaoru in the second season.
** Also, when Mayu first sees Kaoru again, she talks about them being bound by the red string of fate (she's been nursing a crush since their first meeting years earlier). Alas, TheMasquerade prevents Kaoru from telling her his string is already tied.
* In ''Manga/{{Nana}}'', Reira writes a song about her seedy relationship with Shin by describing it as taking the red string off someone's finger.
* Tachikawa Megumi's one-shot manga ''Music Box of Spring'' used the Red String concept; in the end, the characters' hands are cut and bleeding, and the main character's perspective shifts, seeing the blood as the red string.
* ''MamotteShugogetten'' has an episode with mystic threads that bind the fingers of the first two people to pick it up. Although they don't behave much like the threads of the legend, the reference is clear, as the first one to be used is red.
* In the manga's 139.5 omake of ''Manga/GakuenAlice'', the hands of baby Mikan and Natsume are seen as connected by a (likely red) string.
* ''Manga/DetectiveConan: The Time-Bombed Skyscraper'' concludes with Ran selecting [[WireDilemma which color wire on a bomb to cut]]; the bomber had designed the bomb to go off if the red wire were cut, having overheard that red was her favorite color, but Ran couldn't bring herself to cut it, seeing it as the red string of fate between her and Shinichi.
* Reversed in ''Anime/{{Noir}}'', as Mireille (a Corsican) muses on the connection between herself and Kirika.
-->"The thread that binds you and I is the color black, of this I am sure. [[SerialEscalation Blacker than pitch...blacker than night...blacker than the darkness itself.]]"
* ''Manga/YuYuHakusho'': Kuwabara claimed that the way he found his love interest, Yukina, was simply by following the red string tied to their fingers. The anime provides a visual; in reality, he probably just sensed her spirit energy.
* In an episode of the "alien arc" of ''Anime/SailorMoon R'' Usagi states to her love rival En/An/Ann (urgh, [[SpellMyNameWithAnS transliteration problems]]) alias Natsumi Ginga that she is connected to Mamoru by the red string of destiny. Which appears on screen, only to have Natsumi cut it.
* ''Manga/KannazukiNoMiko'''s opening features the two heroines tied by a red string. It appears in the show itself in the form of Himeko's bloodied bandage which twirl around the arms of both females [[spoiler:as the gods take Chikane away in the last episode]].
* The opening of ''Anime/{{Potemayo}}'' has Mikan wearing a literal red string that supposedly attaches to Sunao, and she makes it clear during the series that she believes she and Sunao are "tied" to each other.
* In ''KimagureOrangeRoad'', as Yukari sings ''Like a salvia flower'' onstage she takes a long red ribbon and playfully wraps a part of it around Madoka, throwing the other extreme to Kyouske. [[http://www.youtube.com/watch?v=k-aXx6TrfmY Here is the video]]
* In the first ending theme of the anime adaptation of ''{{Kekkaishi}}'' there is a line which roughly translates to "there is a red string which connects two people", in apparent reference to Yoshimori's feelings for Tokine.
* ''Anime/{{Mononoke}}'' contains a variation involving a red cloth between an unborn child and their parents. A much more traditional example appears in the OP, with a red string tied to the pinky finger.
* The first ending to ''[[OddlyNamedSequel Zoku]] Manga/SayonaraZetsubouSensei'' contains lyrics mentioning this, in their usual depressing way:
-->''I could see the red stings connecting everyone to you... I was a blue thread''.
* In the manga ''Manga/{{Wish}}'', when the main character Shuichiro confesses to his adoptive mother that he loves her, she tells him that she is not the one meant for him and that he needs to find the person on the other end of the string on his finger.
* Essentially the basis of ''Bound Beauty'', only that the characters can see the ''other'' strings of fate (White, Blue, Yellow, and Black, in addition to Red). Leads to some very surreal battle scenes.
* In ''LightNovel/{{Toradora}}'', the class' ProfessionalWrestling show for the SchoolFestival (don't ask) involves them threatening to cut their ChristmasCake homeroom teacher's red string of fate to threaten the heroine. The teacher is [[BerserkButton naturally upset]] at witnessing this and tries to attack the play. The audience assumes it's AllPartOfTheShow as the stage hands carry her off.
* In ''TheMikosWordsAndTheWitchesIncantations'', Letty ties an invisible, magical thread to both her pinky and Tsumugi's so they won't get separated. Naturally, it's red, and Tsumugi [[GirlsLove cheerfully mentions its Japanese significance to Letty and how it probably makes them lovers]].
* This becomes a plot-point in ''Manga/MahouSenseiNegima'''s summer OVA when Yue (an IneptMage at the time) uses this on Nodoka and Negi, creating a physical red string tying the two together by their pinkies for a day.
* The trope is name-dropped in ''Manga/{{Inuyasha}}'' when Kikyou tells Inuyasha that the red string of fate, once cut, can't be restored.
** The final shot in the first ED sequence for ''Inuyasha: The Final Act'' shows a literal red string tied to Inuyasha and Kagome's fingers.
* While not actually shown in the anime, one of the DVD covers for ''HappyLesson'' has each one of the male lead's fingers tied with a red string and all the strings being connected to all his mothers' pinkies. He is not amused.
* The red string of fate has a much darker purpose in ''Anime/HellGirl'', where each client of Enma Ai seals the contract with her by ''untying'' a red string. This sends the object of their vengeance to hell -- and damns the client to go there too, after death. So it's still a destiny bond, but a very different kind...
* The end theme of ''Tsuyokiss'' shows each of the girls naked (it's a {{fanservice}} show) with a red string tied to one finger.
* Parodied in ''{{Yuria 100 Shiki}}''. The titular {{Sexbot}} fantasizes about one of these on her finger . . . connecting to Shunsuke's crotch. (The narration remarks that all of her fantasies end up there eventually.)
* In the ''LightNovel/FullMetalPanic'' manga, Gauron implies that this is what [[HoYay fatefully keeps bringing him and Sousuke together]]. Sousuke does not react well to the suggestion.
* Used in an official ''[[VisualNovel/HigurashiNoNakuKoroNi Higurashi]]'' art, for [[http://i511.photobucket.com/albums/s355/Sokumei/twin.jpg Mion and Shion]] drawn by the Watangashi/Meakashi manga artist. [[{{Twincest}} Make what you will of this]].
* In ''PokemonSpecial'', it happened to Red and Yellow twice. Of course, said string (a Caterpie's String Shot and Yellow's fishing line) wasn't actually ''red''...but yes, pinkies and shipping symbolism were still there.
* In ''Manga/{{Nabari no Ou}}'', Miharu is shown with a red string on his finger after [[spoiler: erasing Yoite]].
* Used literally in ''KoiCupid''; red strings are seen connecting people together. If necessary, the strings can be cut with magic scissors.
* In ''Manga/{{Naruto}}'', we have a literal example. The titular character meets the spirit of his mother, who tells him that the reason she fell in love with his father was because, during an incident when she was kidnapped, he was the only rescuer who noticed that she had been leaving a trail of red hair. She commented that her red hair was her "personal red thread of fate", leading her to her soulmate.
* At the end of ''{{Gundam 00}}'''s first season, Graham Akre claims that he and protagonist Setsuna F. Seiei are connected by this -- [[FoeYay the fate to face each other in battle.]] Though he's a Westerner, Graham is a massive Japanese culture {{Otaku}} and would likely understand the reference.
* ''Shibariya Komachi'' is pretty much based on this trope, although it uses 5 different colours of thread that connect a variety of things. Protagonist Chiyako can initially see other people's red strings and takes advantage of this to make money, but ends up with the white string that binds body and soul.
* In ''LightNovel/ACertainMagicalIndex'', Index speculates that the reason why nearly any girl who meets Touma falls in love with him is that his AntiMagic right hand, Imagine Breaker, negates the Red String of Fate for other people.
* ''Manga/WeddingPeach'': Played with. Momoko knits a muffler as a present to Yanagiba and {{Imagine Spot}}s them wearing it together. In the next frame a thread leads offscreen, and reveals that Yosuke somehow invaded the ImagineSpot and is also wearing it, [[BelligerentSexualTension much to her displeasure]]
* In ''Anime/PuellaMagiMadokaMagica,'' Madoka giving her red hair ribbons to [[spoiler: Homura]] before [[spoiler:AscendingToAHigherPlaneOfExistence]] can be considered a reference to this trope. After [[spoiler: Madoka's disappearance,]] her hair ribbons are [[spoiler: [[TragicKeepsake the only thing Homura has left of her]] and the only trace that she ever existed.]]
* In ''Anime/{{Bleach}}'', specifically the movie Fade To Black, Ichigo and Rukia's red spirit threads are linked to one another, allowing Ichigo to find Rukia when she went missing during the events of the movie.
** A flashback reveals that [[spoiler:Urahara connected Isshin and Masaki together with a red spirit thread so that Isshin's influence would prevent her from Hollowfying.]]
* {{CLAMP}}'s romances pretty much run on this trope. Every character in the multiverse has a destined person who - as we learn in ''[[Manga/TsubasaReservoirChronicle Tsubasa]]'' - they will meet in every dimension they exist in. Which, in some cases, sucks ''[[DeconstructedTrope terribly]]'' because they can't help loving that person no matter what the hell they do to them. Some poor bastards come out of that. *cough*looking at you [[TokyoBabylon Sumeragi Subaru]]*cough*
* Done literally in ''MysteriousGirlfriendX'' in the non-manga OVA story.

[[/folder]]

[[folder:Fan Works]]
* In the ''{{Naruto}}'' fanfic "[[http://www.fanfiction.net/s/4139575/1/One_Small_Step One Small Step]]", a young Naruto can't find a partner to play Cat's Cradle - a game that involves using string to create complex patterns between the fingers - (the game also functions as an exercise to prepare students for ninja handsigns.) . After searching for someone to play the game with him, he finds Hinata and asks for her help. The two end up tying each other's hands together (with red string, naturally), which leads to them becoming childhood friends and starting to develop feelings for each other.
* Quite a few ''AxisPowersHetalia'' fanarts of [[MoeAnthropomorphism America and Canada]] show a red string attached around their hands. Could be to represent their relationship which in real life is one of the closest and most productive international relationships in the world. Or it's to play up the HoYay.
** The red string of fate has also been referenced in quite a few fanworks that pair Japan with someone. It's most common in Japan/China fanworks, probably because of the concept's origins in China and the tendency for the pairing to be portrayed as a [[StarCrossedLovers tragic one]], but appears in some Japan/Taiwan and Japan/Greece fanworks too.
** [[http://www.fanfiction.net/s/6551793/1/Color This cute little oneshot.]] [[EverythingsBetterWithRainbows But it has more colors representing more types of relationships.]]
* In the ''Series/{{Sherlock}}'' fic "[[http://archiveofourown.org/works/452818 With Your Crooked Heart]]”, most people (except those supposedly incapable of love) have words on their forearm which appear as if by magic at some point in their lives, usually during childhood. The words are in the handwriting of your True Love and may be a name, address, or cryptic clue like a poem or obscure reference. When the clue is obvious, like an address, you can hurry fate along by turning up on their doorstep, but if its as vague as a line of poetry, you may have to get to know your True Love before the clue begins to make sense.
* In the ''{{TiMER}}''-inspired ''Series/{{Sherlock}}'' fic “[[http://archiveofourown.org/works/287582 Blue Veins]]”, everyone has a magical configuration of veins near the surface on the inside of the wrist that count down to the moment you meet your True Love.
* In the ''Series/{{Sherlock}}'' fic “[[http://archiveofourown.org/works/440801 Put a Smile in Your Name]]”, everyone is born with the first name of their True Love in their True Love’s handwriting on their palm. Databases of this information exist and, for a fee, matchmaking companies will check for any matches between your name and the name on your palm.
* In the ''Series/{{Sherlock}}'' fic "[[http://archiveofourown.org/works/322377 Finding John]]”, everyone is born with the first name of their True Love like a tattoo on the inside of one finger. With only a limited number of first names, it’s usually not enough information (unless you’re The British Government) to lead you to a person but once you meet your True Love, they’ll have your name too and the particular color and shade of your names will match.
* This trope is defied in the ''Series/{{Sherlock}}'' fic, "[[https://archiveofourown.org/works/435055 To the Limits of Your Choice]]" when Sherlock chooses not to care, or perhaps not to accept the consequences of acknowledging the person symbolized by the soulmate mark on his wrist. When John finds his soulmate, Sherlock asks John to choose between camaraderie with him and romance with her [[spoiler:and John also defies this trope, choosing to continue adventuring with Sherlock]].

[[/folder]]

[[folder:{{Film}}]]
* In ''Film/KamenRiderTheFirst'', a partially-suicidal Haruhiko runs away from the hospital to a field where he can grieve alone, only to realize that a red string had somehow caught on his clothes. Behind him walks up Miyoko, his love interest, and the string was a thread from the red sweater she was wearing which had caught and began unraveling as he ran. She directly quotes the concept, and he proceeds to hug her for all he's worth. [[spoiler:Unfortunately, since they were both [[IllGirl terminally ill]], things don't [[LoveMakesYouEvil turn out]] [[RedemptionEqualsDeath very well]].]]
* In ''TheSecretOfNIMH'', in what may or may not be an intentional usage: when Mrs. Brisby first meets Jeremy, he is tangled in red string which he is retrieving to build a "love nest" for his future Ms. Right
** The end of the film has Jeremy and his love interest flying and holding the two ends of the string
* In ''{{TiMER}}'', {{Magitek}} timers installed on the wrist by a friendly MegaCorp countdown to the day you’ll meet your True Love and beep when you finally set eyes on each other. Angst Alert: you could get your timer and find out you have decades to wait until you’ll meet Mr or Ms Right or it could remain blank because your True Love is a Luddite without a timer of their own.
[[/folder]]

[[folder:{{Literature}}]]
* In Paulo Coelho's ''Brida'', the titular girl is informed that Witches can recognize who their destined soulmate is because they can see a special twinkle in the eyes, while Mages do so by seeing a star over the shoulder of their destined. Brida, who becomes an aspiring Witch, recognizes the twinkle in her actual boyfriend's eyes and is pleased; but the Mage she initially consulted has seen the star over Brida's shoulder, and is conflicted. [[spoiler:This is carried to a long scene where the Mage finally decides to confess his visions and feelings and use the star to try to find Brida in a crowd... and then he finds Brida's boyfriend, who also has the damn star over ''his'' shoulder. This being a NoBisexuals setting, the Mage [[IWantMyBelovedToBeHappy steps out]] and lets the happy couple be.]]
* In the novel "On a Pale Horse", Zane is offered a Lovestone, a magic stone which will lead him to his true love. He borrows the stone and follows its glow. The good news is he finds her. The bad news [[spoiler:the proprietor of the store bought the encounter, in exchange for the Wealthstone, so HE gets the lovely and extremely wealthy girl]]. The results of this encounter start the main plot.
* In ''Literature/RumoAndHisMiraculousAdventures'', the 'Silver Thread' is something that wolpertings can actually perceive through smell, and it leads to their soulmate. Unfortunately for the protagonist, he's also hopelessly uninformed about relationships, and didn't even know that girls ''existed'' until he came to Wolperting, meaning it isn't all that much use.
* In L.J. Smith's ''Literature/NightWorld'' series, soulmates who are destined to be together often describe a silver thread connecting the two of them together.
* Also in L.J. Smith's ''VampireDiaries'', Elena remembers stories of "the souls of true lovers" being connected by "a silver string from heart to heart or a red cord from pinky to pinky", but it's the first one that she's able to find (and follow). Stefan and Elena are bound together by the silver cord from soul to soul, implying that they are destined soul mates.
* Continuing with L.J. Smith, in Secret Circle, Adam and Cassie are bound together by a silver cord, like Stefan and Elena from Vampire Diaries.
* In ''Literature/JaneEyre'', Mr. Rochester has this to say: "...it is as if I had a string somewhere under my left ribs, tightly and inextricably knotted to a similar string situated in the corresponding quarter of your little frame. And if that boisterous Channel, and two hundred miles or so of land, come broad between us, I am afraid that cord of communion will be snapped; and then I've a nervous notion I should take to bleeding inwardly."
[[/folder]]

[[folder:Live Action TV]]
* In FlashForward2009, three characters (Bryce, Keiko, and Olivia) see themselves in love with someone they haven't met yet in their flash forwards leading to two of them (Bryce and Keiko) on a quest to find each other and a third to doing everything she can to avoid her apparently-fated love interest. The recurring question of fate versus free will is never really resolved and it is heavily suggested that Olivia avoiding her match with Lloyd might actually doom the entire world.
* The horror series ''Series/TheVampireDiaries'', which has Stefan and Elena's relationship. They are soul mates whose destinies are intertwined for eternity.
* The 2012 series [[{{Series/Touch}} Touch]], in which a young boy appears to be able to sense patterns in the larger world through numbers, specifically calls out to the Chinese legend, though implies connections beyond just love (a person saving someone's life, a person having an object another person desires but wouldn't have met otherwise, etc.)
* In an episode of ''Series/StarTrekTheNextGeneration'', an Enterprise crew member starts having dreams of a beautiful woman. When the Enterprise meets with a plague-infested ship, he finds the woman is there and has been having dreams of him, and created portraits of him. He decides to go with them to help them treat the plague.
* In the latter half of the third season of ''Series/TeenWolf'', while it hasn't been outright confirmed as being "the red string of fate," Stiles and Lydia (the show's slowest burn ship) share a tender moment in Stiles's room wherein he uses some of the red yarn with which he connects clues on his wall of investigation material to slowly wrap around Lydia's fingers. [[HeldGaze Gazing]] ensues.
[[/folder]]

[[folder:Music]]
* The Irish band the Frames have a song called "Red Chord" on their album "Fitzcarraldo" that is based around this idea.
* TheCivilWars' song "Tip of My Tongue" references this.
--> ''You're a red string''
--> ''Tied to my finger''
--> ''A little love letter''
--> ''I carry with me...''
* The cellist and singer Kanon Wakeshima, has the song named: L'espoir ~Mahô no Akai Ito~ (The Hope, Magical Red String) the song talks about a girl trying to get a guy to love her and talks about the Red String as a trap for her love, the song opens with this verse:
--> ''This trap that I tended to you''
--> ''This cherry colored thread''
--> ''Fall inside, slave of my love''
--> ''You won't be able to escape''
[[/folder]]

[[folder:MusicVideos]]
* The RedStringOfFate is shown in [[http://www.youtube.com/watch?v=qgdc7-ityPs the video]] for "Brilliant Star" by NanaMizuki.
* The flash PV of {{IOSYS}}'s [[http://www.youtube.com/watch?v=viPZZYYTSIY Make Us Your Brides]] plays with the imagery by tying [[LesYay Marisa and Reimu to Suika]].
* In the song "Adolescence" by the Vocaloids Kagamine Rin and Len, a mention is made about how it seems Rin and Len's hands are tied together with a thread.
* "Just Be Friends" by {{Vocaloid}} Megurine Luka. Most of the pictures have her and another boy tied together with a red string. [[spoiler:Which just adds to the whole sadness of the video and the song...]]
* [[http://www.youtube.com/watch?v=vIdebsjD6nk This video]], using "Makka Na Ito" by Plastic Tree, which is about a couple joined by a red string [[spoiler:who aren't together anymore, possibly implying that one of them is dead.]]
* [[http://youtu.be/BOpCm5FN8FM Thievery Corporation's video]] for "That Time We Lost Our Way" has LouLou Ooldouz Ghelichkhani singing while following one, with Rob & Eric playing bongos & a squeezebox nearby.
* [[https://www.youtube.com/watch?v=XHjJxpSf7EA Root Five's video]] for "Love Doctor" shows the members tangled in red strings.
[[/folder]]

[[folder:PictureBooks]]
* The picture book ''The Red Thread'' by the children's author and illustrator Grace Lin uses this trope to tell a fairy tale about adoption, of all things. In this case, it connects the adoptive parents and their child; magic glasses which enable the parents to see it allow them to find her. It's pretty sweet if you don't read this article first and end up thinking "Wait, isn't that the thing that they use to justify idiotic relationships in anime?"
[[/folder]]

[[folder:TabletopGames]]
* In ''[[TabletopGame/SeventhSea 7th Sea]]'', when a Fate Witch sees red strands between people with her ''sorte'' magic, those represent conflict (Swords). Blue actually represents romance (Cups).
* ''[[TabletopGame/ChangelingTheLost Changeling: The Lost]]'' uses red bands in a person's aura as a signifier of a [[MagicallyBindingContract pledge.]] When people who've made a pledge are near each other, the bands are connected with red threads.
** The Crimson Weaver is the personification of the tale, except it's more of a WellIntentionedExtremist who will use the red string to bring together [[LoveIsACrapshoot whomever they consider to be soul mates]], which may have [[StrangledByTheRedString no basis in reality]] and can [[AxCrazy end badly]].
* In ''TabletopGame/WerewolfTheApocalypse'', the long-dead Apis shifters served as Gaia's matchmakers. One power of theirs let them see the red threads that bound people with a common destiny - though they couldn't tell whether it would be good or bad.
[[/folder]]

[[folder:VideoGames]]
* The recent ''{{Pokemon}}'' games have a red ball of string as an item (called "Destiny Knot" in the English version). Appropriately, if the monster holding this item becomes infatuated, the foe that it "loves" will be infatuated as well.
* In the Anime based fighting game ''{{Naruto}}, Narutimate Hero Accel 2'', the character of Chiyo has an Ougi where her attack puppets (Mother and Father, which are actually modified exhumed corpses) are joined by a literal red string, which is then used to viciously lacerate the opponent.
* ''TearsToTiara'''s [[CMOTDibbler CMOT Dibbler]] Epona has a mysterious red string worth 99999 gold for sale at her shop. It turns out that [[spoiler:she was using it as SchmuckBait to get the PlayerCharacter to buy it, as it has a LovePotion effect on the people it attaches. Yes, it's [[{{Eroge}} that]] kind of game.]]
* In ''TheLegendOfZeldaSkywardSword''. In an interesting bit of FoeYay during their second battle, Ghirahim appears again to tell Link that the reason they keep bumping into each other is because they are bound by a red thread of fate. He also gets behind Link, invading his personal space again, and whispers in his ear. He tells Link to come to him after licking his lips and says they're bound by that red thread of fate, that they're destined to fight. He also says that the thread of fate will be soaked crimson with Link's blood.
* Gepetto from the ''ShadowHearts'' series uses this literally as his ultimate weapon. It's acquired after his sidequest, where it's revealed that his dead daughter's soul lies within his puppet, saving him from a demon. The string manifests as their filial love; Her devotion to her father, and his to his daughter (For reference, he attacks with the puppet, and puppet strings are the weapons, adding attack power and the like)
[[/folder]]
[[folder:VisualNovels]]
* In GirlsLove VisualNovel ''AkaiIto'', this is the literal translation of the title. In-game, when someone take Kei's [[SupernaturallyDeliciousAndNutritious blood]] ([[DoesThisRemindYouOfAnything with her consent]]), there is a short FMV showing two blood-red sinusoidal wave synchronizing with each others into a straight line, showing adjoining of destiny. [[BloodyHilarious This even become a running gag in Yumei route]]!
** More gruesome literal example: [[spoiler: When Uzuki accidentally slash Kei with her sword, the golden-scabbard katana Ito.]]
[[/folder]]

[[folder:{{Webcomics}}]]
* The webcomic named, appropriately, ''RedString''.
[[/folder]]

[[folder:{{Web Original}}]]
* In ''IlivaisX'', Iriana created a BloodOath bond with Mille, making the string out of each other’s blood in a kind of haphazard transfusion. Since every cell of Iriana is designed to return to her, this essentially means Mille will always innately know where she is and be drawn to that location.
* [[http://shiveress.deviantart.com/art/Forevermore-142099586 This]] lovely piece of art here. Perhaps not a traditional example, but it's there, and it's most likely romantic.
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[[folder:{{Real Life}}]]
* In contrast, a red string in India is usually a Rakhi and is a physical demonstration of a bond between a brother and sister. It can be tied to [[LikeBrotherAndSister any boy a girl considers to be like her brother]] and is usually used effectively to kill unwanted romantic/love interests. The ramifications of an Indian girl trying this with a Japanese boy have yet to be explored.
* The Red String belief is so well known in Japan that this trope is invoked through linguistic gestures: holding up the thumb is used as shorthand for girlfriend and holding a pinky up would indicate a boyfriend.
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