Examples of Accidentally-Correct Writing in fan works.
Crossovers
- Citadel of the Heart:
- Our first introduction with Ash Ketchum sees him cooking pancakes for his mother's two pet Pikachu, and later for his own newly hatched Pichu turned Pikachu come later chapters of Truth and Ideals. Alolan Raichu would be revealed nearly two years after the story was originally published, and the change in appearance to match Alola is specifically because of a change in diet; a favoritism of pancakes, specifically. Not only that, but the author took a massive risk with evolving Pikachu into Alolan Raichu by only using the Thunder Stone as normal to achieve the form alongside the aforementioned dietary habits. Turns out he makes lightning strike twice because, in Sun and Moon and Ultra Sun and Ultra Moon, Pikachu will only evolve into its Alolan Raichu variant unless you're located within Ultra Space when you use the Thunder Stone on it.
- In Digimon Re: Adventure, the Agumon from the movie is the same entity as the one from the series. A little over a year later, the finale of Digimon Adventure tri. would heavily imply that yes, the Agumon from the movie and the show really are the same one.
- In Truth and Ideals Chapter 58, Necrozma is referred to by Solgaleo and Lunala as an ally who for some reason went rogue, and are horrified as to the Blood Knight Necrozma has become. This chapter was released a good year before Pokémon Ultra Sun and Ultra Moon came out, and even longer before the anime revealed this apparently wasn't too far off; Necrozma was originally benevolent and was worshiped alongside Solgaleo and Lunala as a trio of light bringing Legendary Pokémon, before it started absorbing the light instead.
- In Code Prime, Charles' brother V.V. is given the name Victor. Supplementary materials would later reveal his canon name is Victor zi Britannia.
- The infamous The Diary of Anne Frank/Dragon Ball Z crossover Troll Fic Until the End of Time is about Goku fighting Hitler and his army. Given the total disregard of the latter's source material, it seems likely that the author was unaware that Fusion Reborn actually does have a subplot where Goten and Trunks fight Hitler's (or rather, "The Dictator's") army. He doesn't get to go Super Saiyan, though.
- The fan comic How I Became Yours infamously included a scene of daytime bloodbending which was thought to be impossible in the universe of the show, until The Legend of Korra introduced three characters who were able to do it, not that the author of the fic would have known this at the time. This is especially ironic since it's a fic that more or less personifies Canon Defilement, yet somehow managed to be pretty spot on about the metaphysics of the world.
- The manga showed little of Unohana's canon bankai though it was implied to be a powerful acid. Vow of the King changed it into a massive pool of blood that she could use to regenerate from any wound near instantly. Fast forward over a year, the anime displays that her bankai is indeed a pool of blood the fuels a powerful Healing Factor.
- Light and Dark The Adventures of Dark Yagami:
- The narrator claims that Wales is "A town in England". In reality, there is a small village in England called Wales
. However, there is not one called 'whales', as the author persistently spells it. - Blood Bananas (Blud the shinigami's Trademark Favorite Food) are actually a real thing, though they are not normally made of blood.
- The narrator claims that Wales is "A town in England". In reality, there is a small village in England called Wales
- In Shadow and Rose, which was published prior to the release of the game, Alistair explains to Wynne that he's not good at dancing because Templars never learned how. In Inquisition, a romanced Cullen tells the Inquisitor the same thing at the Winter Palace ball, and his explanation is almost word-for-word the same one as in the fic.
- In addition, The World of Thedas, vol. 2 was published after the release of Inquisition and revealed that some of the background details of this fic were accurate, such as the fact that Arl Eamon altered the records of Alistair's birth to hide his real mother's identity.
- The Ghost of Ochs was started a month before the release of the Cindered Shadows side story, which features Baron Ochs as a boss character in one of the DLC paralogues. In the story, Monica mentions to Byleth that House Ochs has a history of skilled sword fighters. When the DLC was released, it turned out that Baron Ochs was of the Trickster class, which excels in swords and white magic (but the Baron himself attempted to fight with Balthus' Vajra-Mushti, a gauntlet-type weapon, before its power consumed him and turned him into a Demonic Beast).
Grandmaster of Demonic Cultivation: Mo Dao Zu Shi
- Second Bite of the Cherry has its plot kicked when the Gusu Lan Sect decides to adopt a preteen girl because they think she can be turned into a proper bride for one of their heirs. One reader pointed this is a genuine practise for China and Taiwan that fell out of favor in the early fifties — it's called tongyangxi for "little daughter-in-law".
- Callisto's backstory in wasting beats of this heart of mine involves a prince of Thebes whom Zeus arranged to marry Artemis. Artemis was not consulted, and slew the prince for his arrogance. The author admitted that this was made up, but much to their surprise, Artemis did slay a man of royal Theban descent for lusting after her: Actaeon note . The author promptly welded their stories together (with self-admitted artistic license).
- A Different Halloween has this in-universe, when the chief at the Daily Prophet takes a few bits of fact and wraps them around a backstory for the recently deceased Voldemort to write a sensationalist piece, not realizing that he and a young Rita Skeeter have accidentally hammered out Voldemort's actual history.
- Lady Norbert picked her online handle to name herself after the dragon from Harry Potter, but tacked "Lady" on the front because she's a grown woman. This was in 2000. Seven years later, Deathly Hallows revealed that the dragon Norbert is, in fact, Norberta.
- My Immortal:
- Many Dramatic Readings scoff at the line which says that it was snowing and raining at the same time. This is known as "sleet" in Commonwealth Nations and parts of the United Statesnote , and it very much happens in the real world. If you believe one of the people who confessed to writing it as a Troll Fic, the author thought it was impossible and put it in as a joke. It has also "rained" slush, which also works.
- This line, which, if you can make out what Tara's saying, inadvertently called a major plot twist in The Deathly Hallows (though to be fair, by this point it was a fairly common fan theory):"nd den hairy wil have 2 kommit suicide so voldimort will die koz he will rilly be a horcrox!!!!!111"
- Though the series's treatment of goth culture is infamous for bearing almost no conceivable resemblance to the real thing, one line in the series is "Red vevlet lined da blak box." This is, if mangled, identical to the first line in "Bela Lugosi's Dead" by Bauhaus—generally considered the Trope Maker of gothic music, and may be one of the few actual cases of goth culture in the entire story. Hammering it home further, this is right after a description of how the room is covered in "portraits of gothic bands lik MCR, GC and Marlin Mason", all of which are considered pop-punk or emo. Depending on how you view My Immortal, this is either a very well-hidden Easter egg or a cosmic coincidence.
- Brainbent has two character interpretations that were later proven accurate in canon:
- Rose being The Alcoholic predates the Homestuck Rose developing an alcohol problem by over a year. When asked about it, the authors said that they suspect that they picked up on parts of her personality in canon that would predispose her to addiction.
- Brainbent's Bro Strider is an abusive, neglectful caregiver, mostly leaving Dave to fend for himself in an apartment full of weapons and sexual puppets but no food. This and the psychological trauma it causes Dave turn out to be almost entirely accurate. In early Homestuck acts, things like the Striders' fridge being full of swords are played for laughs; much later, Dave admits that he had to learn from movies that fridges are supposed to be used for food, and shares Brainbent Dave's realization that his Big Brother Worship of Bro was horribly unfounded.
- According to The Victors Project, District 12's first victor (unnamed in canon when the fic was written) won the Tenth Hunger Games. Then The Ballad of Songbirds and Snakes, a prequel to the original trilogy, was published. Said prequel is set against the backdrop of the Tenth Hunger Games, which are won by a tribute from District 12, albeit a girl and not a boy as is the case in The Victors Project.
- In Kyuubi N: Son of the Demon King, Tobi is revealed to be the ghost of Madara Uchiha possessing the dead body of his descendant Obito. Years later, canon would reveal Tobi's identity as Obito trying to complete a plan created by Madara before the latter's death.
- The fanfic More Than Enemies has Sakura taking water-walking to the next step — air-walking! Achieved through very precise chakra control, she manages to walk on the water-air interface of water bodies thus allowing her to move rapidly underwater. As it turns out, Chlamydomonas (a type of algae) can do this. Algae set one flagellum to adhere themselves to the water-air interface while using their other flagellum to move forwards. It's called gliding.
- This Bites!:
- Early on in the story, the Cross-Brain introduce the idea that the Nefertaris are looked down on by the Celestial Dragons for not 'ascending' with them, with it being the cause of Vivi joining the Straw Hats in this timeline. Come Chapter 908 of the manga, it's revealed that the Nefertaris really are considered traitors for choosing to remain in Alabasta. The Cross-Brain then admits they were relieved they got lucky with that detail.
- An incident where a genuine mistake turned out to be correct happened during Enies Lobby. During the chaos, Cavendish led Big Mom on course to Wano, which the Marines stated was Kaido's territory, the Cross-Brain forgetting that the Straw Hats didn't meet Momonosuke and his retainers until after the Time Skip, where it looked like Kaido's conquest of Wano was a recent thing. Then, it's revealed that Momo and his group were actually sent into the future from twenty years ago, meaning that Kaido was ruling over Wano during the Enies Lobby incident. Talk about fanfiction predicting canon.
- Later on, Moria tries to use his Awakened Devil Fruit to transform himself into a dragon, and fails miserably. As Chapter 926 reveals, Kaido, the Emperor who murdered his crew, apparently has a Mythical Zoan that allows him to turn into a massive Eastern dragon.
- In chapter 40, after Sengoku speaks to Cross via Transponder Snail, Cross is pretty sure that Sengoku has Conquerer's Haki. Vivre Card - One Piece Visual Dictionary (Card #0265, released in the second starter set) confirms that he does.
- Also during the events of Enies Lobby, Cross states that Garp has Conquerer's Haki while atleast one of the Five Elders is shown using it. Both Garp and Saint Topman Warcury are later shown using Conquerer's haki in chapters 1080 and 1111 respectivly.
- Hope of the Shield Hero: During the Battle of Melromarc, Naofumi uses the Royal Shield several times and notes it works better than expected, although he blames this on the knights he's fighting being weaker than he thought. The Royal Shield's powers are greatest when the Shield Hero is either protecting or fighting a member of a royal family, and one of the people Naofumi's protecting is Raphtalia, who is the daughter of Q'Ten Lo's former heir to the throne, and thus a member of a royal family. The reason this falls into the trope? The author honestly forgot about the Royal Shield's power.
- At Arm's Length is an Alternate Universe fanfic started in 2016 that describes what the manga could've been like had Kaoru's father survived and returned home after the first arc of the story. A year later, an official sequel manga began that includes (among other things) the reveal that Kaoru's father is still alive.
- White Sheep (RWBY):
- The fic started as a Crack Fic, as the idea of Salem falling in love and raising a family was ridiculous. It turned into a Comedy AU following the canon reveal that she did have family thousands of years ago (even after she turned evil), but it ended in tragedy.
- Jaune and his sisters all have blonde hair and blue eyes like their father; while a bit improbable, it's far from impossible. The canon reveal that Salem also had blonde hair and blue eyes before her dip in the Pools of Annihilation makes the genetics far more probable.
- In this moringmark comic, Janna makes a voodoo doll of herself and continues giving the doll a back massage to ease her own back pains. In reality, voodoo dolls have been used for similar supernatural healing purposes in contrast to cursing others with them.
- Selaginella Lepidophylla: The title is the scientific name of a plant that is called, among other things, "The False Rose of Jericho". Later, canon would reveal that Rose Quartz isn't a Rose Quartz at all, but actually Pink Diamond.
- While Being Dead Ain't Easy was written before the anime/manga got to the part about how the Millennium Items were made, Yami Bakura's statement that he knows roughly how it was done still fits, as do the parts about how much power the shadows once held. The ritual to save Joey is also accurate to the dubbed anime, as the villagers were sacrificed via their souls/life energy.
- A Yu-Gi-Oh! The Abridged Series video did a brief mocking of Yu-Gi-Oh! ZEXAL, including the declaration that ZEXAL would feature "card games IN SPACE!" Another video featured a bit of Yuma declaring "Now I'm on the moon! You know why? Because it's extreme!" This whole idea had almost nothing to do with ZEXAL (it wasn't even out by then), and it was clear the whole thing was deliberately over-the-top farce. There is an alien in the cast, which may be where the joke came from, but the actual gimmick of ZEXAL's duels was the characters accessing an Augmented Reality system to liven up games, and while later arcs do involve going to other worlds, they're other dimensions (including the home dimension of said alien) rather than other planets. But by a bizarre coincidence, years later, during its final arc, ZEXAL did indeed feature a card game being played in space, while on the moon. (Yuma wasn't there, though.)
