History Fanfic / VoidsInheritance

** The Meta Liberation Army openly operates in Deika as the Meta Liberation association as part of a deal struck with the government, allowing Deika to be the only city where free quirk use is allowed.

* TheFutureIsShocking: Inosuke's first reaction on waking up in 2234 is to think that he's dreaming.

-->'''Nezu''': Now imagine our Quirk Wars on a scale stretching across our little section of the galaxy. You can’t. It’s incomprehensible to you. None of us, or even your parents were born even born yet. Imagine living in a world where there is no one looking out for you, and the only figures in authority treat you like something less than livestock. They lived through something we can only barely comprehend. They were the closest thing that their system had to heroes. //

** David Shield is under the opinion that Tyl isn't inherently evil and instead a product of his upbringing under a xenophobic empire and being genetically incapable of disobedience (at least in the case of non-defective Grineer). Coupled with the fact that Tyl is clearly questioning his true thoughts on the matter.

* CompleteMonster: Multiple characters InUniverse are considered BeyondRedemption with no positive qualities.
** Ballas is a vile [[DomesticAbuse domestic abuser]] and [[AbusivePrecursors Abusive Precursor]] whose redeeming qualities were all a front he put up for the public. All Might considers Ballas and the Orokin even ''worse'' than All For One, who at least has some reasons to do what he did.
** The Orokin in general are regarded as BeyondRedemption for the horrific experiments they conducted and casual disregard towards the peoples they ruled over.
** Akelous, leader of the Chaos Theory doomsday cult.

''[[https://archiveofourown.org/works/45103960/chapters/113463652 Void's Inheritance]]'' is a FusionFic by [[https://archiveofourown.org/users/duhadventure duhadventure]]. The fic combines the worlds of ''Manga/DemonSlayerKimetsuNoYaiba'', ''VideoGame/MetalGear'', ''VideoGame/GenshinImpact'', ''Manga/{{Hellsing}}'', ''Literature/{{Durarara}}'', ''Manga/JoJosBizarreAdventure'', and ''VideoGame/{{Warframe}}'' taking place in the setting of ''Manga/MyHeroAcademia''.

* CompleteMonster: Multiple characters who are considered BeyondRedemption with no positive qualities.

** The infested speak like this by default.

** Ballas: A [[DomesticAbuse domestic abuser]] and [[AbusivePrecursors Abusive Precursor]], whose redeeming qualities were all a front he put up for the public. All Might considers Ballas and the Orokin even ''worse'' than All For One, who at least had some reasons to do what he did.
** The Orokin in general.

* DarkerAndEdgier: Significantly darker than ''Manga/MyHeroAcademia'' on account of ''VideoGame/{{Warframe}}'' being the main crossover with this universe, along with other series. The story doesn't shy away from heavier gore and mature themes.

** Hunhow speaks in '''Bold''' and is noted to have a booming and deep voice.
** Vay Hek SPEAKS IN ALL CAPS BECAUSE HIS DEFAULT VOLUME IS SCREAMING.
** Sargas Ruk talks in a deep, out of breath way denoted by frequent pauses.

** His first plan is to kill Hunhow due to the threat he poses, but he realizes that due to how powerful he is, even in his weakened state it might not work. He isn't willing to risk the possibility of a LastSecondVillainRecovery that would allow him to break free and rampage before being put down.
** Natah isn't even sure that she is strong enough to kill him.

** Natah and Haylee being slightly too late to stop Ballas leads to the destruction of the universe instead of potentially destroying the origin system.

* HatedByAll: ''Everyone'' hates Ballas, even those who never met him purely off of what they heard about him.

* TheMenInBlack: Nezu and Toshinori reveal that they exist to keep [[TheWorldIsNotReady the supernatural world under wraps]]. Implied by other codex entries to consist of [[Manga/JoJosBizarreAdventure The Speedwagon Foundation]], the [[Manga/{{Hellsing}} Hellsing Organization, Catholic Church]], [[Characters/GenshinImpactAdepti Exorcist Association]], and the modern iteration of the [[Manga/DemonSlayerKimetsuNoYaiba Demon Slayer Corps]].

** Nezu reveals in chapter 19 that they look the other way to accommodate peaceful nonhumans or ones [[KnowWhenToFoldEm where the cost of killing them outweights the benefits]] and are willing to make concessions.

* OurDemonsAreDifferent: Crossed with OurVampiresAreDifferent. Chapter 16's codex entry reveals that "vampires" like Dio and Alucard, and "demons" like Muzan Kibutsuji have been reclassified as some sort of human mutant transformation rather than a separate species. For human-based monsters "demon" is more of a title than an actual species. It also mentions that there are spiritual entities that the Chinese Exorcist Association refers to as demons, based on negative karma or corrupted lost souls.

* True Vampires sired by drinking human blood or through the use of the Stone Masks are undead but still distinctly human. [[note]]Alucard, Seras, Dio, Vanilla Ice, and Straizo[[/note]]
* The Pillar Men are classified as a demi-human species undergoing a similar transformation without becoming undead. Justified as there are other human-adjacent species in the world. [[note]]The Original Pillar tribe were demi-humans, and Kars, Santana, Esidisi, and Wammu were mutated by the masks[[/note]]
* Muzan and his demons are mutated humans.

** What if the events of Demon Slayer, Hellsing, and Jojo's Bizarre Adventure were part of My Hero Academia's history?

* Nezu points out that it is difficult to judge Ordan and Natah, due to how horrific the Origin System was, to the point where FreudianExcuse is averted because it was just ''that bad'''.
-->'''Nezu''': “Now imagine our Quirk Wars on a scale stretching across our little section of the galaxy. You can’t. It’s incomprehensible to you. None of us, or even your parents were born even born yet. Imagine living in a world where there is no one looking out for you, and the only figures in authority treat you like something less than livestock. They lived through something we can only barely comprehend. They were the closest thing that their system had to heroes.” //

The Man in the Wall's requiem words are this.

* BlackSpeech: Emphasized by [[''SelfDemonstrating/Zalgo'' Zalgo text]].

* BlackSpeech: Emphasized by [[SelfDemonstrating/Zalgo Zalgo text]].

* DarkerAndEdgier: Significantly darker than ''Manga/MyHeroAcademia'' on account of ''VideoGame/{{Warframe}}'' being the main crossover with this universe, along with other series. The story doesn't shy away from heavier gore and themes like domestic and child abuse.

** Inosuke's parents as per ''Manga/DemonSlayerKimetsuNoYaiba'', his mother killed by Doma while he was a baby and never knowing his father.

* WhiteAndGreyMorality: Nezu points out that it is difficult to judge Ordan and Natah, due to how horrific the Origin System was, to the point where FreudianExcuse is averted because it was just ''that bad'''.

* Judging by the way time travel works, Inosuke won't be able to return to his time without damaging the fabric of the universe.

* YouCantGoHomeAgain: Even if they could escape the PrisonDimension that the MHA universe is, the Warframe universe was destroyed, leaving the survivors with nowhere to go.

BillyNeedsAnOrgan: Organ donation has become a rarity in the age of quirks, as the organs are often tailor-made to support the quirk or unique biology of a person. Quirkless people have it easier in terms of finding a compatible donor, but its not saying much considering the dwindling population. The overall diversity of quirks means that CloningBodyParts isn't a feasible option with their current knowledge of genetics and cloning. Luckily, a certain Grineer scientist shows up...