History Fanfic / TalesOfTheDekuverse

** Several of the viewings can cause this reaction from the viewers in regards to the motivations of the more anti-heroic or villainous characters, largely due to the fact that the viewers, at this point canonically, still view things through a lens of BlackAndWhiteMorality.

* WhatTheHellHero: After they're left with no choice but to tell Midnight about what they did, she lays into the "sisterhood" interested in Izuku for their poorly thought out plan at finding out if Izuku would get jealous over Mineta being a perv towards them, especially when several of them show NoSympathy towards what they almost did to Mineta, calling what they did excessive and dangerous. As such, she loops Nezu in, the two agreeing to ''not'' tell Aizawa so he doesn't try and expel half his class along with several other classes' students, so they can cure Izuku of the aphrodisiac, but that the "sisterhood" ''will'' be punished for what they did, even if in private.

* GreaterScopeVillain: {{Play|ingWithATrope}}ed with. While they're ultimately just an AuthorAvatar intending to make the story more interesting, from the perspective of the characters, Zayden themselves is one. They're considered a {{Jerkass God|s}} willing to emotionally and mentally harm Izuku for the sake of "entertainment", and has no issue exerting their influence over the entire cast. Aizawa is understandably weary about continue the viewings upon learning of their existence, even with the shielding they were given, [[ProperlyParanoid and is proven right]] when Zayden stops the teachers from punishing Izuku for threatening Mineta since they considered it "funny".

* GreaterScopeVillain: {{Play|ingWithATrope}}ed with. While they're ultimately just an AuthorAvatar intending to make the story more interesting, from the perspective of the characters, Zayden themselves is one. They're considered a {{Jerkass God|s}} willing to emotionally and mentally harm Izuku for the sake of "entertainment", and has no issue exerting their influence over the entire cast. Aizawa is understandably weary about continue the viewings upon learning of his existence, even with the shielding they were given, [[ProperlyParanoid and is proven right]] when Zayden stops the teachers from punishing Izuku for threatening Mineta since they considered it "funny".

* AuthorAvatar: Zayden themselves is a character in the fic, acting as an interdimensional god watching the characters react and inserting their influence in the name of making things more "interesting". This gets {{deconstructed|Trope}} once several of the cast learn of their existence and actions, as they are reasonably ''terrified'' as a result, the idea that someone is making them act OutOfCharacter for the sake of [[AuthorTract their own ideas]] while being powerless to stop them nearly causing Aizawa to stop the viewings altogether. As while a writer will wish to first and foremost make their fic interesting, to the characters themselves, the writer instead comes across as a {{Jerkass God|s}} who will twist their very beings for a joke, all while being helpless to stop them, effectively making it a CosmicHorrorStory from their perspective.

** "Kratos vs. Spawn" would see Izuku acting uncharacteristically solemn and angry in regards to both fighters, even giving detailed backstories on both of them despite the viewing ''not'' detailing them and said backstories being something he reasonably shouldn't know. When later meeting in private while also letting Aizawa know about One For All, they decide to ask the box itself why this happened, and reveals it was because of two factors: that Izuku is the "Main Character" of his world, and ''[[AuthorAvatar Zayden]]''. As a "Nexus Point", Izuku is more likely to connect with the Nexus Points of other worlds, and Zayden decided to override Kratos and Spawn's ''original'' counterparts[[labelnote:*]]Before the box was cut off it was going to identify Kratos' counterpart as Bakugo, and whioe Spawn's is unknown Bakugou says it would "obviously" be Tokoyami[[/labelnote]] by linking them to Izuku, allowing their emotions and memories to influence him, Zayden themselves doing it because they thought it was [[ForTheLulz funny.]]

** "Kratos vs. Spawn" would see Izuku acting uncharacteristically solemn and angry in regards to both fighters, even giving detailed backstories on both of them despite the viewing ''not'' detailing them and said backstories being something he reasonably shouldn't know. When later meeting in private while also letting Aizawa know about One For All, they decide to ask the box itself why this happened, and reveals it was because of two factors: that Izuku is the "Main Character" of his world, and ''[[AuthorAvatar Zayden]]''. As a "Nexus Point", Izuku is more likely to connect with the Nexus Points of other worlds, and Zayden decided to override Kratos and Spawn's ''original'' counterparts[[labelnote:*]]While Spawn's is unknown, before the box was cut off it was going to identify Kratos' counterpart as Bakugo[[/labelnote]] by linking them to Izuku, allowing their emotions and memories to influence him, Zayden themselves doing it because they thought it was [[ForTheLulz funny.]]

* AlternateSelf: A key feature of the stories is that the various fighters in ''Death Battle'' and the assorted cast of the ''MCU'' are alternate versions of the characters watching the different series. It's especially notable for ''MHA Watches Death Battle'' as the characters can have several different characters act as alternate versions of themselves. The technology that allows the cast to view the series also identifies whose alternate counterpart is whose when they first appear. Zayden reveals in the author's notes that he bases the counterparts around similarities the character would have with them, whether it be personality, powers, or various other attributes. A full list can be found [[AlternateSelf/TalesOfTheDekuverse here]].

* CerebusRetcon: The teachers being willing to overlook students who really act up getting attacked by other students. Initially, it's implicitly because the behavior they're showing is reprehensible to them such as Mineta's perverted behavior or Monoma taking his taunting too far. Later on though, when the teachers are set to punish Izuku for blatantly threatening Mineta, ''something'' all but said to be [[AuthorAvatar Zayden]] exerted their influence over the teachers to stop them from doing so, falling in line with Zayden finding the slapstick style punishments doled out [[AuthorAppeal humorous]] and their declaration they'd screw around with them [[ForTheLulz if they thinks it would be funny]], making all previous iterations retroactively suspect, the implication that too was Zayden override their free will in favor of the fic being interesting.

** Combined with AdaptationalJerkass, Monoma is depicted in a much more unfavorable light in earlier chapters of the fic, with particular attention being paid to the fact that his two known counterparts, Starscream and Shadow the Hedgehog, are/were ''villains''. Zayden would admit themself this was deliberately due to their belief that Monoma was the UA Traitor, and trying to provide an InUniverse reason for Nedzu to suspect him. After the canon manga revealed the ''true'' identity of the traitor however, this aspect was largely dropped, with Monoma's characterization falling more in line with that of his canonical JerkWithAHeartOfGold characterization.

* ForegoneConclusion: Something [[https://archiveofourown.org/comments/604350024 Zayden has acknowledged]] is that, at the rate the cast is watching the series, namely watching half a season a day, and the fic taking place before the three month {{timeskip}} between the "Endeavor Internship" arc and the "Paranormal Liberation War" arc, then it's all but certain that the cast ''will'' learn about One For All and Izuku & All Might's Teacher-Student relationship much earlier than canon, namely via the Season 6 finale "All Might vs. Might Guy", which has both details included as {{late arrival spoiler}}s. So anytime Izuku and All Might begin worrying about their secret being exposed, it's really only a matter of time before their secret is out.

** {{Downplayed|Trope}} as the entity in question isn't "evil", but functions on BlueAndOrangeMorality. After Izuku ends up adversely affected by the device when turned into a counterpart to both Kratos and Spawn, Izuku, Nezu, All Might, Aizawa, Gran Torino, Recovery Girl, and Setsuna confront the device on what happened, learning that what happened was due to a celestial and multidimensional entity, Zayden's AuthorAvatar. When they ask ''why'', [[DirectLineToTheAuthor Zayden himself responds]], saying he did it ForTheLulz. While to Zayden, it's his job as the author to make things more interesting, to the characters the notion is ''terrifying'', that Zayden would mess with Izuku mentally and emotionally just for fun, and are left heavily on guard when, even after being provided shielding to prevent further influence, Zayden says he won't screw with them ''much'', it all but said he ''will'' pull something again regardless of the shielding if he thinks it would be entertaining. Aizawa actually wanted to stop the viewings then and there out of fear Zayden might make good on his word, making it clear that to the characters, Zayden is a {{Jerkass God|s}}.
* GreaterScopeVillain: {{Play|ingWithATrope}}ed with. While he's ultimately just an AuthorAvatar intending to make the story more interesting, from the perspective of the characters, Zayden themselves is one. They're considered a {{Jerkass God|s}} willing to emotionally and mentally harm Izuku for the sake of "entertainment", and has no issue exerting their influence over the entire cast. Aizawa is understandably weary about continue the viewings upon learning of his existence, even with the shielding they were given, [[ProperlyParanoid and is proven right]] when Zayden stops the teachers from punishing Izuku for threatening Mineta since they considered it "funny".

** "Kratos vs. Spawn" would see Izuku acting uncharacteristically solemn and angry in regards to both fighters, even giving detailed backstories on both of them despite the viewing ''not'' detailing them and said backstories being something he reasonably shouldn't know. When later meeting in private while also letting Aizawa know about One For All, they decide to ask the box itself why this happened, and reveals it was because of two factors: that Izuku is the "Main Character" of his world, and ''[[AuthorAvatar Zayden]]''. As a "Nexus Point", Izuku is more likely to connect with the Nexus Points of other worlds, and Zayden decided to override Kratos and Spawn's ''original'' counterparts[[labelnote:*]]While Spawn's is unknown, before the box was cut off it was going to identify Kratos' counterpart as Bakugo[[/labelnote]] by linking them to Izuku, allowing their emotions and memories to influence him, Zayden himself doing it because he thought it was [[ForTheLulz funny.]]

** Bakugou still has a volatile HairTriggerTemper but he makes it clear that Mineta's perverted behavior legitimately ticks him off and he's one step away from blasting the midget when he acts up.
** When Bakugou's choice winds up winning for the "Felicia vs Taokaka" fight he tries to gloat about it but stops right away when he sees Eri crying over the fight.
** Endeavor feels to need to apologize for the actions of Ares, who is his AlternateSelf, towards [[GodOfWar Kratos]] who is an AlternateSelf to Izuku.
** The teachers are willing to overlook students who really act up getting attacked by other students, implicitly because the behavior they're showing is reprehensible to them such as Mineta's perverted behavior or Monoma taking his taunting too far. {{Play|ingWithATrope}}ed with later on, as when the teachers are set to punish Izuku for blatantly threatening Mineta, ''something'' all but said to be [[AuthorAvatar Zayden]] exerted his influence over the teachers to stop them from doing so, falling in line with Zayden finding the slapstick style punishments doled out [[AuthorAppeal humorous]] and his declaration he'd screw around with them [[ForTheLulz if he thinks it would be funny.]]

** {{Downplayed|Trope}} as the entity in question isn't "evil", but functions on BlueAndOrangeMorality. After Izuku ends up adversely affected by the device when turned into a counterpart to both Kratos and Spawn, Izuku, Nezu, All Might, Aizawa, and Setsuna confront the device on what happened, learning that what happened was due to a celestial and multidimensional entity, Zayden's AuthorAvatar. When they ask ''why'', [[DirectLineToTheAuthor Zayden himself responds]], saying he did it ForTheLulz. While to Zayden, it's his job as the author to make things more interesting, to the characters the notion is ''terrifying'', that Zayden would mess with Izuku mentally and emotionally just for fun, and are left heavily on guard when, even after being provided shielding to prevent further influence, Zayden says he won't screw with them ''much'', it all but said he ''will'' pull something again regardless of the shielding if he thinks it would be entertaining. Aizawa actually wanted to stop the viewings then and there out of fear Zayden might make good on his word, making it clear that to the characters, Zayden is a {{Jerkass God|s}}.

* OOCIsSeriousBusiness: Around the beginning of Season 2, Izuku begins acting... weirdly. He starts getting even more flustered by the girls complimenting him while mentally acting like a CrazyJealousGuy, begins having {{mood swing|er}}s where one second he's his usual nice if somewhat timid self, the next he's got barely restrained TranquilFury as he puts the fear of ''God'' into Mineta after he acts even slightly perverted, and starts suffering headaches that slows down his notetaking. The girls that are all interested in him manage to realize what happened: Izuku accidentally drank a cup of coffee with a high powered aphrodisiac in it that they had intended Mineta to drink as part of a plan to see if Izuku was interested in them and would get jealous. Once they see how much pain he's in, they confess what they did to Midnight who in turn tells Nezu, who sends Setsuna and the [[LockedOutOfTheLoop unknowing]] Iida to get the classes some snacks and drinks while Setsuna goes to Midnight's office to get a multipurpose antidote, which they slip to Izuku. While it fixes most of the aforementioned issues, Izuku is still slightly more confident and flirtatious, if only more aware of it now.

* DramaticIrony: The viewing for "Ivy Valentine vs. Black Orchid" would see Mineta actually practicing restraint in gushing over the fighters bodies, namely out of fear that Izuku would beat the shit out of him after having previously putting the fear of god into him, going as far as having a GoodAngelBadAngel moment over it. Little did he know, Izuku was much too preoccupied due to suffering the effects of an aphrodisiac, the narration pointing out this was likely the ''one time'' Mineta could have been as shameless as he wanted without fear of being beaten by Izuku.

* TheStationsOfTheCanon: While Zayden has made clear that the events of the fic are their own timeline and as such not guaranteed to follow the same route as canon, being set at the tail end of the "Endeavor Internship" arc and before the three month time skip before the "Paranormal Liberation War" arc, there are numerous nods to canon events still occuring in the background in spite of the differences caused by the inclusion of the viewings, such as only Aizawa and Yamada being allowed to see Kurogiri with Gran Torino following their learning he may be their thought deceased friend Shirakumo.

** Several of the viewings can cause this reaction from the viewers in regards to the motivations of the more anti-heroic or villainous characters, largely due to the fact that the viewers, at this point canonically, still view things through a lens BlackAndWhiteMorality.

* GoodCannotComprehendEvil: {{Downplayed|Trope}} as the entity in question isn't "evil", but functions on BlueAndOrangeMorality. After Izuku ends up adversely affected by the device when turned into a counterpart to both Kratos and Spawn, Izuku, Nezu, All Might, Aizawa, and Setsuna confront the device on what happened, learning that what happened was due to a celestial and multidimensional entity, Zayden's AuthorAvatar. When they ask ''why'', [[DirectLineToTheAuthor Zayden himself responds]], saying he did it ForTheLulz. While to Zayden, it's his job as the author to make things more interesting, to the characters the notion is ''terrifying'', that Zayden would mess with Izuku mentally and emotionally just for fun, and are left heavily on guard when, even after being provided shielding to prevent further influence, Zayden says he won't screw with them ''much'', it all but said he ''will'' pull something again regardless of the shielding if he thinks it would be entertaining. Aizawa actually wanted to stop the viewings then and there out of fear Zayden might make good on his word, making it clear that to the characters, Zayden is a {{Jerkass God|s}}.

** Even before getting to his own ''Death Battle'', [[Franchise/StarWars Darth Vader]] manages to frighten the viewers with his mere presence. Aside from the [[DarthVaderClone obvious]] visual similarities to All For One, Vader's very aura sends chills down the spine of everyone watching, those present at Kamino directly comparing it to the killing intent All For One gave off after he blasted away dozens of heroes in a CurbStompBattle. The pros are even left wary of Luke's powers due to being Vader's son, as while they ''try'' to avoid invoking SinsOfTheFather, the idea of anyone of Vader's lineage having that kind of power is disconcerting.

** The teachers are willing to overlook students who really act up getting attacked by other students, implicitly because the behavior they're showing is reprehensible to them such as Mineta's perverted behavior or Monoma taking his taunting too far.

** Izuku devolving into one of his muttering storms while watching is common, typically resulting in someone needing to snap him out of it. At first it was Bakugo yelling to get his attention, then Kota spraying him with his Quirk.

* OOCIsSeriousBusiness: Around the beginning of Season 2, Izuku begins acting... weirdly. He starts getting even more flustered by the girls complimenting him while mentally acting like a CrazyJealousGuy, begins having {{mood swing|er}}s where one second he's his usual nice if somewhat timid self, the next he's got barely restrained TranquilFury as he puts the fear of ''God'' into Mineta after he acts even slightly perverted, and starts suffering headaches that slows down his notetaking. The girls that are all interested in him manage to realize what happened: Izuku accidentally drank a cup of coffee with a high powered aphrodisiac in it that they had intended Mineta to drink as part of a plan to see if Izuku was interested in them and would get jealous. Once they see how much pain he's in, they confess what they did to Midnight who in turn tells Nezu, who sends Setsuna and the [[LockedOutOfTheLoop unknowing]] Iida to get the classes some snacks and drinks while Setsuna goes to Midnight's office to get a multipurpose antidote, which they slip to Izuku. While it fixes most of the aforementioned issues, Izuku is still slightly more confident and flirtatious, if now aware of it now.

** The girls of the hero course, Mei, and Melissa ''all'' undergo a {{downplayed|Trope}} case of this in ''MHA Watches Death Battle''. In an effort to figure out how Izuku feels about most of them, they try to spike Mineta's drink with an aphrodisiac that will ramp up his perversion towards them enough for Izuku to step in and beat him down. While the girls don't ''like'' Mineta and don't hesitate to punish him in canon, they'd never go as far as to ''drug'' him and set him up to get ''physically beaten''.

** Seeing fighters acting as {{badass normal}}s ends up flummoxing the viewers, with even some of the Pro-Heroes like Endeavor finding themselves unable to comprehend a "Hero" that is by all means "powerless". Learning that [[ComicBook/{{Batman}} Bruce Wayne/the Batman]], considered one of the "greatest heroes" of the DC Universe, has no special abilities whatsoever, but is instead just a highly disciplined man who uses his money, martial arts training, and intelligence to stand at the same level of "gods", causes the viewing to practically ''stop'', as everyone is left completely astounded at such a possibility. Even All Might and Izuku, both formerly Quirkless themselves, can't believe what they're seeing due to having internalized the idea that they wouldn't have been Heroes had they not obtained One For All, and how despite Izuku achieving his dream of becoming a Hero, they only proved their world ''right'' by Izuku getting One For All.

** Seeing fighters acting as {{badass normal}}s ends up flummoxing the viewers, with even some of the Pro-Heroes like Endeavor finding themselves unable to comprehend a "Hero" that is by all means "powerless". Learning that [[ComicBook/{{Batman}} Bruce Wayne/the Batman]], considered one of the "greatest heroes" of the DC Universe, has no special abilities whatever, but is instead just a highly disciplined man who uses his money, martial arts training, and intelligence to stand at the same level of "gods", causes the viewing to practically ''stop'', as everyone is left completely astounded at such a possibility. Even All Might and Izuku, both formerly Quirkless themselves, can't believe what they're seeing due to having internalized the idea that they wouldn't have been Heroes had they not obtained One For All, and how despite Izuku achieving his dream of becoming a Hero, they only proved their world ''right'' by Izuku getting One For All.

--->'''All Might:''' 'I may have fixed my mistake and told Young Midoriya that He could become a Hero, but I never fixed my mistake and said that you could become a hero without a Quirk.'

** Seeing individuals considered the "greatest heroes" of their worlds be revealed to legally be ''vigilantes'' is disconcerting to many viewers, and some of the more morally dubious actions some of the fighters do cause them to be labelled "villainous" as a result. One such case was when viewing the story of [[VideoGame/SoulSeries Isabella "Ivy" Valentine]]. Upon learning she's a WellIntentionedExtremist intent on eliminating the dangerous Soul Edge, even if it means hurting the innocent in the process, Mt. Lady notes that such behavior isn't really "heroic", prompting Aizawa to comment she likely ''isn't'' a Hero, and is likely an AntiHero at best, a Villain at worst. Even All Might is reminded of [[BlackAndWhiteInsanity Stain's]] crusade when thinking about Ivy, and declares that it doesn't matter what their intentions are, by the end of the day they're both no better than simple murderers.

''[[https://archiveofourown.org/series/1840900 Tales of the Dekuverse]]'' is a series of reaction fanfics done by [[https://archiveofourown.org/users/Zayden_StormVoid/pseuds/Zayden_StormVoid Zayden StormVoid]] (who's also done ''Fanfic/MyHeroPokedamia'') where the students and staff of UA and various Pro-Heroes watch various series.

* ProperlyParanoid: Aizawa's concern that, even with the barriers provided by the device, Zayden would continue to affect them ForTheLulz is proven true when, after Izuku puts the fear of God into Mineta right before "Ivy Valentine vs. Black Orchid" and ends up inadvertently terrifying everyone else, the teachers are subtly influenced to ''ignore'' Izuku doing so rather than discipline him like they desired, the narration all but saying that Zayden is responsible. This in turn falls in line with how he's admitted via Author Notes that he finds Kaminari and Mineta being TheChewToy funny even if his detractors don't, and deliberately increased it to [[TakeThatAudience spite the detractors]].