History Fanfic / DangerFirst

* DoomMagnet: Izuku's cover story for his manifestation of One for All's powers is that he has a passive Sensory/Stockpile Quirk that detects danger and 'stores' this up for later use when he's near it, and everyone who knows of his love of Hero fights assumes he was subconsciously chasing moments like this due to his fictional Quirk. This fits so well that [[spoiler: All For One completely believes the lie and assumes his son has developed a second generation Quirk based off of his own with influence from his mother's family Quirk-Tree.]]

* KryptoniteFactor: [[AvertedTrope Averted]] with Izuku. When his sensei used Erasure on him, the Vestiges were actually the ones suppressing his Quirk, to hide how unusual it truly is.

* SpottingTheThread: While Eraserhead (understandably) prefers to believe that Kurogiri is using Oboro's stolen Quirk, Nedzu finds it very fascinating the fixation upon warping people to where Oboro died.

* WhamEpisode:
** Chapter 12 ending with Izuku planning to call his dad to discuss possible hero names, blissfully unaware at how this might out him to All For One as All Might's successor. The Vestiges are screaming within his head.

* AwesomeByAnalysis: In preparation for the Sports Festival, 1-A decides to work together and put a plan in place. Cue Izuku, Monoma, Ochako, and Momo putting together a detailed analysis of all past events, and their predictions for what will happen this year, all culminating in Nedzu himself calling them to the principal's office...

* BlessedWithSuck: Danger Sense is this in many ways for Izuku, as while it provides precognitive warnings to him, it also leaves him with immense anxiety just from being aware of all the mundane dangers around him. On the morning of the USJ attack, he is nearly physically paralyzed by the stress of what he is feeling and throws up at one point.
** Although Danger Sense was considered by the Vestiges to be infinitely better than giving Izuku the Stockpile Quirk, as they were concerned about raw power breaking his bones (if not turning them into powder).

* TheDreaded:
** Nedzu. From stories he heard from his brother, Iida is ''terrified'' of the principal, and by all accounts this is a common reaction. Izuku notably is not, but that is because of Danger Sense not going off from him, but also because on their first meeting he only partially noticed all the usual intimidation gestures (because he was so busy being sick from the warnings about USJ), and so no longer surprises.

''Danger First'' is a fanfic written by Marsalias a.k.a. [=FiveRivers=], who also wrote [[https://tvtropes.org/pmwiki/pmwiki.php/Fanfic/LifesGreatLie Life's Great Lie]]. It can be found [[https://archiveofourown.org/works/32434468/chapters/80424067 here]] on Website/ArchiveOfOurOwn or [[https://fanfiction.net/s/13916035/1/Danger-First here]] on Website/FanFictionDotNet.

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* AdaptationalEarlyAppearance: The Vestiges, Ingenium, Gran Torino and Hatsume all get introduced before the USJ incident even begins.

%%* AdaptationalEarlyAppearance:
%%** The Vestiges.
%%** Ingenium.
%%** Gran Torino.
%%** Hatsume.
%%** Introducing how Kurogiri used to be Shirakumo Oboro.

* EveryoneHasStandards: Aizawa is not a good teacher. In fact, he admits to being a terrible one. So he is shocked to hear from Izuku that he sincerely considers him one of the best teachers he ever had and plans to inflict punishment against Izuku's previous teachers for being even worse than him.

** All For One is Izuku's biological father.

* AdaptationalVillainy: Due to how Izuku (Class 1-A) fought villains and Bakugo (Class 1-B) didn't, the latter's confrontation with his former friend at U.A is far more toxic. The rest of 1-A openly compares his behavior to that of a villain, and [[WhatDoesSheSeeInHim are silently judgmental of Izuku's attempts to defend him]].
* AdaptationalEarlyAppearance:
** The Vestiges.
** Ingenium.
** Gran Torino.
** Hatsume.
** Introducing how Kurogiri used to be Shirakumo Oboro.

** All Might gets a few of these as with how the USJ goes differently definitely confirms All For One is still alive, and he had just given Izuku All For One along with the mandatory target on his back. They are not impressed by his defense he believed AFO dead. Also, Recovery Girl is unimpressed that Izuku had been trained by All Might for nearly a year without learning his name.

''Danger First'' is a fanfic written by Marsalias a.k.a. [=FiveRivers=]. It can be found [[https://archiveofourown.org/works/32434468/chapters/80424067 here]] on Website/ArchiveOfOurOwn or [[https://fanfiction.net/s/13916035/1/Danger-First here]] on Website/FanFictionDotNet.