History Fanfic / TheOnlyHero

* {{Cliffhanger}}: Chapter 10 ends with [[spoiler:an unknown party sending an order to every available Nomu in the Doctor's lab to capture One for All's holder, starting the search at U.A]].

* WhamEpisode: Chapter 17 is a real doozy. [[spoiler:It is first revealed that it was a branch of the US Government that experimented on Nedzu. It is then quickly revealed that contrary to what Nedzu thought, he wasn't created by them, he was merely found by them. The circumstances of his initial escape also lines up with the Rapture where every human with a Quirk disappeared without a trace. Thus meaning the same people truly responsible for his creation are ''also'' the same people responsible for the Rapture. Thus, by tracing Nedzu's true origins, General Adams is able to figure out the perpetrators and already attempted a rescue of those taken. Which ended in complete failure. 25 tanks, 15 jets, and a lot of drones, were all taken out by a single enemy aircraft]].

* AwesomenessByAnalysis: Izuku, with limited information, is able to reconstruct how One for All came to be, correctly identifying it was once two separate Quirks where one is a stockpiling Quirk and the other is a Quirk that passes things on.
* BadassNormal: [[spoiler:Knuckleduster spent years as a Quirkless vigilante even before the fic started]], and Izuku specifically names him as an inspiration for his own old dreams of becoming a Quirkless Hero.

* BadassNormal: [[spoiler:Knuckleduster counts, having spent years as a Quirkless vigilante even before the fic started.]]

* BadassNormal: [[spoiler:Knuckleduster counts, having spent years as a Quirkiness vigilante even before the fic started.]]

* {{Cliffhanger}}: Chapter 10 ends with [[spoiler:an unknown party releasing every available Nomu and giving them orders to capture Izuku]].

* DramaPreservingHandicap: Izuku is unlocking the other Quirks within One for All far faster than he did in canon, but he cannot control them properly, meaning he has to be careful with their usage.

** Nine is revealed to have survived the purge of the world, and is released.

* DramaPreservingHandicap: [[spoiler:Izuku is unlocking the other Quirks within One for All far faster than he did in canon, but he cannot control them properly, meaning he has to be careful with their usage]].

* TheSocialDarwinist: Nine is fundamentally this, and sees this whole situation as the golden opportunity to claim his rule over the world by virtue of being the fittest of all.
* TheUnreveal: The Vestiges try to reveal to Izuku who is the cause of the Rapture, but an alarm clock wakes Izuku up before they can do it.

** The Vestiges appear to Izuku near the beginning of his UA career instead of much later.

* DragonWithAnAgenda: Kagome Mirai.

*** [[spoiler:I-Island's device that measures Quirk Fields was ''found'' by them, not invented by them, and that it has been recording Quirk Fields since the Dawn of Quirks]].

* DescriptionCut: Nedzu thinks the threat of All for One is gone due to the Rapture, which cues an immediate scene change to Nine, though wielding an imperfect version of All for One, proves Nedzu wrong with his existence.

** Nine also survived the purge of the world, and is released.

* TheSocialDarwinist: Nine is fundamentally this, and sees this whole situation as the golden opportunity to claim his rule over the world by virtue of being the fittest of all.

** Nine

** TheSocialDarwinist: Nine is fundamentally this, and sees this whole situation as the golden opportunity to claim his rule over the world by virtue of being the fittest of all.

* AdaptationalEarlyAppearance: Eri and Melissa appear early in the story instead of far later in the timeline.

* TheReveal: Chapter 6 reveals several things:
** [[spoiler:The Rapture is almost certainly caused by a Quirk]].
** [[spoiler:I-Island's device that measures Quirk Fields was ''found'' by them, not invented by them, and that it has been recording Quirk Fields since the Dawn of Quirks]].

* NoSell: Eri's Rewind Quirk allowed her to resist whatever caused Quirked people to disappear.

* DisabilityImmunity: Most of the remaining human population are Quirkless. The few remaining Quirked people were those that didn't manifest them yet like Izuku who was ''incredibly'' lucky with how long it took One for All to manifest.

!!''The Only Hero'' contains examples of:

The Only Hero (''[[https://archiveofourown.org/works/28952121/chapters/71041458 AO3]]''/''[[https://www.fanfiction.net/s/13802677/1/The-Only-Hero FFN]]'') is a Manga/MyHeroAcademia Fanfiction written by Squeakyclarinet.