History Fanfic / ArsGoetia

** In Chapter 5, King Frost is described as having its [[https://static.wikia.nocookie.net/megamitensei/images/d/d6/KingFrostSMT2.jpg/revision/latest?cb=20080806194603 SMT design]] as opposed to its [[https://static.wikia.nocookie.net/megamitensei/images/b/b2/King_FrostP3.png/revision/latest?cb=20120507030016 Persona design]].
** Chapter 6 shows a similar change with Oberon, whose [[https://static.wikia.nocookie.net/megamitensei/images/c/cc/541_-_Oberon.jpg/revision/latest/scale-to-width-down/286?cb=20120427191415 classic look]] has been replaced with [[https://static.wikia.nocookie.net/megamitensei/images/2/22/Oberon.jpg/revision/latest/scale-to-width-down/1000?cb=20190331170250 his design]] from VideoGame/SoulHackers.

** In Chapter 5, King Frost is described as having its [[https://static.wikia.nocookie.net/megamitensei/images/d/d6/KingFrostSMT2.jpg/revision/latest?cb=20080806194603 SMT design]] as opposed to its [[https://static.wikia.nocookie.net/megamitensei/images/1/1b/Narukami_persona07.jpg/revision/latest?cb=20120203015009 Persona design]].
** Chapter 6 shows a similar change with Oberon, whose [[https://static.wikia.nocookie.net/megamitensei/images/c/cc/541_-_Oberon.jpg/revision/latest/scale-to-width-down/286?cb=20120427191415 classic look]] has been replaced with [[https://static.wikia.nocookie.net/megamitensei/images/2/22/Oberon.jpg/revision/latest?cb=20190331170250 his design]] from VideoGame/SoulHackers.

** In Chapter 5, King Frost is described as having its [[https://im3.ezgif.com/tmp/ezgif-3-1896d0648a6f.jpg SMT design]] as opposed to its [[https://im3.ezgif.com/tmp/ezgif-3-fc6a1fe5856a.jpg Persona design]].
** Chapter 6 shows a similar change with Oberon, whose [[https://static.wikia.nocookie.net/megamitensei/images/c/cc/541_-_Oberon.jpg/revision/latest/scale-to-width-down/286?cb=20120427191415 classic look]] has been replaced with [[https://static.wikia.nocookie.net/megamitensei/images/2/22/Oberon.jpg/revision/latest/scale-to-width-down/350?cb=20190331170250 his design]] from VideoGame/SoulHackers.

** Chapter 6 shows a similar change with Oberon, whose [[https://im3.ezgif.com/tmp/ezgif-3-1cdb03bcb0ad.jpg classic look]] has been replaced with [[https://im3.ezgif.com/tmp/ezgif-3-dae904b3668d.jpg his design]] from VideoGame/SoulHackers.

* DenserAndWackier: Despite the DarkerAndEdgier setting with the looming ZombieApocalypse, Byleth's LiteralMinded and comically serious personality, coupled with [=FoxOnPie's=] own preference for lemony, zany narration chock full of {{Mythology Gag}}s, result in a much sillier work than the original game.

* AdaptationalEarlyAppearance: Those who slither in the dark appear earlier here than they did in the game.
** Chapter 3 introduces Lysithea about a day before she chronologically appears in the game.
* AdaptationalIntelligence: Byleth is slightly more knowledgable about society than in the game, with the second chapter showing that she has a basic understanding of the Church and the political structure of the Adrestian Empire, the Holy Kingdom of Faerghus, and the Leicester Alliance.
** [[ZigZaggingTrope Zig zagged]] in regards to her Crest. On the one hand, she's been aware of the HealingFactor of her Crest since some point prior to the beginning of the story, something the game gave no indication of, but on the other hand, she never thought that her power was thanks to a Crest, despite it being clearly abnormal. Claude even points out that she should have been able to figure it out on her own.
* AdaptationRelationshipOverhaul: Edelgard and Lysithea are [[ChildhoodFriend childhood friends]] in this story.

* BigEater: Like a true Wild Card, Byleth is always either eating a lot of food or thinking about food. She doesn't even agree to be a professor until Rhea mentions that she'll have unlimited access to the kitchen.
* TheComicallySerious: Byleth.

* DarkerAndEdgier: In addition to the CrapsackWorld Fódlan was in canon, now there's a ZombieApocalypse in the form of the Draugr that's been going on for decades.

* HealingFactor: Byleth's Crest gives her one, though she was apparently ignorant to the fact that it was a Crest power before the story.
* LightEmUp: Byleth's Freydis specializes in Bless skills.
* MagicEnhancement: Byleth's physical and magical abilities gain a boost after awakening her Persona.

* NapoleonComplex: Lysithea.

* Myth/NorseMythology: The theme of the story.

* YouDontLookLikeYou: In chapter 5, King Frost is described as having its [[https://im3.ezgif.com/tmp/ezgif-3-1896d0648a6f.jpg SMT design]] as opposed to its [[https://im3.ezgif.com/tmp/ezgif-3-fc6a1fe5856a.jpg Persona design]].
** Chapter six shows a similar change with Oberon, whose [[https://im3.ezgif.com/tmp/ezgif-3-1cdb03bcb0ad.jpg classic look]] has been replaced with [[https://im3.ezgif.com/tmp/ezgif-3-dae904b3668d.jpg his design]] from VideoGame/SoulHackers.

!!Tropes:

* AdaptationalBadass: Byleth, naturally, on account of being a Persona user. Beyond that, Byleth is able to use magic in tandem with her sword skills, something impossible to do at the very beginning of the game.
** In a specific example, Byleth is able to protect Edelgard from Kostas without needing to use a Divine Pulse.

* CordonBleughChef: Byleth when she gets in a mood, according to Jeralt.
--> '''Jeralt:''' The last time your sword broke, you ate raw chicken and waffles covered in soy sauce; last year, when I took back the mead you tried to hide from me, you started eating bacon-wrapped celery and oysters with a side of goat milk; six years ago, I spend one day in the Alliance by myself and come back to find you covered pasta sauce, chocolate ice cream, and fried peaches. Don't even get me started on the Grilled Byleth—\\
'''Byleth:''' It wasn't one day, and all of those were good ideas, conceptually.\\
'''Jeralt:''' For whom?

* ForgottenFirstMeeting: Judging by her dreams, Byleth seems to have met the three house leaders when they were children. She doesn't make the connection due to Edelgard's different hair color in the present, however.

** Chapter three introduces Lysithea about a day before she chronologically appears in the game.

* CurbStompBattle: The Nibelungs are on the receiving end of one in chapter six when they face a pair of Shadows that none of their attacks work on.

* {{Magitek}}: To cross a big river, a keycard is required to activate the bridge crossing it. The keycard is inserted and pulled out from a slit of a metal arch, shooting a silver bridge that connects from opposite sides. The Nibelungs are quite amazed by this since this kind of technology hasn't been invented yet.

** In terms of physical appearance, Byleth's Persona, Freydis, is basically a female [[VideoGame/GodOfWarPS4 Kratos]].

* YouDontLookLikeYou: In chapter 5, King Frost is described as having its [[https://static.wikia.nocookie.net/megamitensei/images/d/d6/KingFrostSMT2.jpg/revision/latest?cb=20080806194603 SMT design]] as opposed to its [[https://static.wikia.nocookie.net/megamitensei/images/1/1b/Narukami_persona07.jpg/revision/latest?cb=20120203015009 Persona design]].
** Chapter six shows a similar change with Oberon, whose [[https://static.wikia.nocookie.net/megamitensei/images/c/cc/541_-_Oberon.jpg/revision/latest?cb=20120427191415 classic look]] has been replaced with [[https://static.wikia.nocookie.net/megamitensei/images/2/22/Oberon.jpg/revision/latest?cb=20190331170250 his design]] from VideoGame/SoulHackers.

** TheFool: The Nibelungs: The team founded by Byleth, Edelgard, Dimitri, Claude, and Sothis to investigate the Draugr plague and the people causing it.
** The Jester: Edelgard von Hresvelg: Edelgard's Arcana, Jester, is the counterpart/{{Foil}} to the Fool, Byleth's Arcana. [[spoiler:This reflects how she is the only other currently-living person with the Crest of Flames]].

** The Jester: Edelgard von Hresvelg: Edelgard's Arcana, Jester, is the counterpart/{{Foil}} to the Fool, Byleth's Arcana.

* DisabledInTheAdaptation: The glasses accessory is a permanent part of Byleth's wardrobe here, implying she has some kind of vision problems.
* DramaticIrony: Rhea and Seteth see Personas as a divine power that only the chosen few are able to obtain, but anyone who's played a ''Persona'' game will know that the requirements for obtaining one usually aren't as great as they make them out to be.

* Myth/NorseMythology: The apparent theme of the story.

* ShipTease: Byleth and Edelgard get a lot of it.

** ''I am thou, thou art I. Thou hast acquired a new vow. It shall use the turmoils of the past to gather strength in the present for moving forward into the future. Such is the gift the Fool Arcana bestows upon thee.''
** "I don't truly understand it myself, but I can tell that it's meant for you." The girl (Sothis) waved her right hand in a fanciful manner, and in front of Byleth's face appeared two items floating in midair: a feathered quill and a single piece of paper that read, "Time is an incorporeal thing. Past, present, and future are all equal in strength, and one should never outweigh the other two. I hereby agree to the statement above, and I chooseth this fate of mine own free will."

--> ''I am thou, thou art I. Thou hast acquired a new vow. It shall use the turmoils of the past to gather strength in the present for moving forward into the future. Such is the gift the Fool Arcana bestows upon thee.''

--> "I don't truly understand it myself, but I can tell that it's meant for you." The girl (Sothis) waved her right hand in a fanciful manner, and in front of Byleth's face appeared two items floating in midair: a feathered quill and a single piece of paper that read, "Time is an incorporeal thing. Past, present, and future are all equal in strength, and one should never outweigh the other two. I hereby agree to the statement above, and I chooseth this fate of mine own free will."

* ArcWords: The past, present, and future seem to be the focus of the story. They're featured in both the making of a new Social Link and the contract that Sothis gives to Byleth.

* TarotMotifs: Like always, the Tarot shows up in the story, to represent Byleth's Social Links.

* MysticalPlague: The Draugr Plague, where several people suddenly goes insane and transforms into horrific beasts with no other purpose but to kill anything on their path. The plague affects everyone, regardless of age, health, even whether they possess a Crest or not, and so far there is no possible cure.

** It turns out that the Draugr were caused by Shadows leaking out of Yggdrasil (but ultimately under the orders of a culprit) where they absorbed and merged with their victims' souls, forcing said victims to undergo a horrific transformation to cope with.

** TheFool: The Nibelungs: The team founded by Byleth, Edelgard, Dimitri, Claude, and Sothis to investigate the Draugr and the people behind them.

** Fool: The Nibelungs, the team made up of Byleth, Edelgard, Dimitri, Claude, and Sothis to investigate the Draugr Plague.

* BigEater: Byleth is always either eating a lot of food or thinking about food. She doesn't even agree to becoming a professor until Rhea mentions that she'll have unlimited access to the kitchen.

** It turns out that the Draugr were formed by Shadows leaking out of Yggdrasil where they absorbed and merged with their victims' souls, forcing said victims to undergo a horrific transformation to cope with.

* OriginalCharacter: Adam, Igor's Velvet Room attendant. Like the other attendants from the Persona series, his name alludes to the ''Literature/{{Frankenstein}}'' novel. He is named after Adam Frankenstein, one of the nicknames of the Creature.

* WhyDidItHaveToBeSnakes: Edelgard doesn't like rats, as in canon, so when she sees some rat Shadows in chapter 2 she suffers a HeroicBSOD.

** According to Byleth's dream, she and the three house leaders gained their Persona potential via a game/ritual like in [[{{VideoGame/Persona}} the original Persona]], orchestrated by a masked man [[spoiler: known by the name of Chandraputra, a minor character from [[VideoGame/Persona2 Persona 2: Eternal Punishment.]]]]

''Ars Goetia'' is a crossover between ''VideoGame/FireEmblemThreeHouses'' and ''Franchise/ShinMegamiTenseiPersona'' where the new Professor also becomes the newest Fool.