History Fanfic / AllThatsLeft

** [[spoiler: Overhaul is killed by ''Thunderbolt,'' of all people, in his second onscreen confrontation with the heroes. No one on either side of the 4th wall saw this coming, but All Might and Nedzu are not happy about it, if only because Nedzu can't ruin Thunderbolt's career and All Might has to say nice things about him at his state funeral.]]

** Purity is the lynchpin holding the Creature Rejection Clan together. She was the one with the organisation skills to turn the CRC into a proper Underworld Power, and their connections to the biomedical industry was through her. [[spoiler:With her death, Nedzu is reasonable certain the clan will collapse.]]

* SurprisinglySuddenDeath: [[spoiler:Garaki, Beast, Nine, and Dabi are almost immediately killed by Geten soon after his revival.]]

* AndThereWasMuchRejoicing: In the final chapter, [[spoiler:the Number throw a party following the death of Geten, celebrating the death of everyone who was involved in hurting them in the past.]]

* TheMaze: The Dagoba Labyrinth is a maze created by the villain Reassembler during the MLA insurrections. Few people know its internal layout which provides natural security to the Numbers that made it their home.

* SuicideByCop: [[spoiler:Following his revival, Geten welcomes the Heroes attempts to kill him, outright telling the world he no longer cares who wins or loses, as long as somebody is dead in the end.]]

* AllForNothing: [[spoiler:All Might is salty that killing All for One achieved jack shit in improving Japan, and that if anything, it made things a little worse since there are more people who can move Quirks around.]]

** [[spoiler:The rivalry between the second holder of All for One and the torchbearers of One for All ends before it can really begins when All Might gives Aiko a poster showing her having dominated the top heroes. It is noted by the narration to be for the best as Japan has suffered enough from the conflict between the One for All wielders and the first All for One user.]]

* FullCircleRevolution: The vestiges in One for All discuss the fact that society went full circle when it shifted from Quirkless oppressing Quirked to Quirked oppressing Quirkless.

* HeadDesk: [[spoiler:Yoichi bangs his head into a desk in the vestige space when All Might giving Aiko a poster is enough to halt the second formation of the All for One vs One for All rivalry in its tracks. When All Might convinces Aiko to be a ''hero'', Yoichi bangs his head through the desk and into the floor.]]

* HorribleJudgeOfCharacter: [[spoiler:Garaki completely misjudges how Geten would take being given power instead of working for it. This results in Garaki's death.]]

* NiceJobFixingItVillain: Yoichi's vestige hates to admit it, but All for One was unintentionally helping Japan almost as much as he was purposefully hurting the country. He distorted Villain Society to revolve around him. Villains in Japan either worked for him or rendered Quirkless and/or left for dead, keeping some level of control and restraint over them.

** Chapter 15 reveals that [[spoiler:the Nagata Fire that Vox held Thunderbolt responsible for and the HPSC covering up his involvement is actually more complicated than initially believed, and that in fact, Thunderbolt cannot be held criminally responsible for anything. He did the best he could with the information he had and the circumstances he was in]].

** Chapter 62 reveals that Shihai Kuroiro of Class 1-B is ''yet another'' U.A. Hero Course student living a double-life. He is a member of the Numbers and yet another spy of the school because Izuku was that paranoid.

* WakeUpCall: The Meta Liberation Army insurrections were a major wake up call to Hero Society as a whole, shaking many previously complacent Heroes into either stepping up to the plate or resigning if they couldn't actually do their jobs.

* PointOfDivergence: Izuku, Tokoyami, and Ibara being part of the Numbers instead of UA students results in other peopke taking their spots. Their replacements are Hisashi Fukuda, Imai Mikio, and Inasa.

** Additionally, while looking over Vox's Quirk Cadence Theory, Nedzu claims he's [[https://tvtropes.org/pmwiki/pmwiki.php/Film/SpiderMan1 "something of a Quirk Scientist himself."]]

* WhiteCollarCime: One of All for One's most profitable illicit activities was getting the Inhuman Supremacy Party to do targeted riots to manipulate property and stock prices in his favour, and keep insurance premiums up. He also hurt competing insurance companies by having Beast and his organization target those mostly insured by them.

* PersonOfMassDestruction: Disaster-Class Villains are defined as any villain that can cause mass civilian casualties with a single activation of their Quirk. Mustard of the Numbers has the potential to be one if he ever decides to become a full villain, and he's just one of ''three'' the Numbers have in their ranks. Reassambler who made the Dagobah Labyrinth in an instant is an example of an outright Disaster-Class Villain.

* KnowWhenToFoldThem: After learning that the Numbers have a precise Warp-Quirk user and three Disaster-Class potential Villains, [[spoiler:Edgeshot]] declares he'd surrender on the spot if they declare war on Japan.

* ShootTheDog: The Disaster Prevention Act is an old act from the Dawn of Quirks that allows the government to execute dangerous and uncontainable villains without trial. An emergency and desperate measure that no one in modern times likes to talk about but tacitly accepted. Mera wants to invoke that act on Reassembler because his Quirk makes it impossible to properly contain him should the location of his prison be exposed.

** Chapter 62 ends with [[spoiler:Garaki noting that Geten is one week away from being ready to be unleashed].

* SmallRoleBigImpact: Kurogiri does not appear at all, but his actions were critical to everything working out, and actually having a chance of working out to begin with. [[spoiler:In his last moments, he shakes off the brainwashing Garaki and All for One instilled on him, remembered he was a hero and told the Numbers he is going to do what a Hero is supposed to do. Him dying to save them is probably the entire reason the Numbers are willing to even ''consider'' trusting and helping the Heroes. The intel the heroes got from looking into the Numbers and the Numbers helping them out is the entire reason Hero Society survived Overhaul's first attack.]]