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Fanfic / My Hero Academia Entropy

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No one is immune to entropy, heroes least of all.

Midoriya Izuku didn't change overnight. The process was slow and gradual, the end result of a life filled with rejections and roadblocks: All Might's refusal to train him, the daily torment of his friends and teachers, the crushing weight of society's collective dismissal of his existence. Not even life as a student in U.A.'s General Studies course could dampen his ambition- but everyone has a breaking point. Destruction brings renewal, and with the death of his old dream, Izuku has gained a new one- one he intends to share with all of Japan.

All orderly systems descend into chaos. No one is immune to entropy, heroes least of all.

Entropy is a My Hero Academia fanfic by Imperium42. It can be read on Archive of Our Own here and Fanfiction Dot Net here.


Entropy provides examples of:

  • Adult Fear: The story is chock-full of it.
    • Four students going missing after you reject one of them from a course and possibly being responsible for them going missing with no idea where they are or what they are doing. Then having them show up three years later as criminals. All Might even says that he was worried Midoriya killed himself.
    • Midoriya having his dreams crushed by an uncaring teacher.
    • Midoriya accidentally killing a mugger out of some misguided attempt at vigilantism.
    • Your child disappearing.
    • Your child running away.
    • Your child becoming a criminal.
    • Your child being hurt in a work related incident.
    • The fact that your child could very possibly be killed due to becoming a criminal or at best being locked up in prison.
  • Ain't Too Proud to Beg:
    • Tsuyu begs Toga to not cut off her tongue while pinned down by the latter. Toga takes a lot of pleasure hearing her begging, but ultimately concludes she didn't ask politely enough and cuts it off anyway.
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    • After losing an arm and a leg to Gentle, Suneater begs him to spare his life, right as Gentle snaps out of his Unstoppable Rage.
  • Alas, Poor Villain: Tomura's death is pretty tragic - he is beaten to a pulp by Midoriya, unable to defend himself, than casually ignored as Dark Shadow tears him to pieces.
  • An Arm and a Leg:
    • Tsuyu gets her tongue cut off by Toga, though it gets reattached later. She is also shot in the hip by Hatsume later on, just as her tongue begins to heal.
    • Midoriya ends up cutting off one of his limbs after almost being caught by Kendo.
    • A literal example with Tamaki, who loses both an arm and a leg after a battle with Gentle Criminal.
  • Anyone Can Die: Iida, Tsukauchi, Gran Torino, All Might, Hawks, Uraraka, Vlad King and Aizawa.
  • Apathetic Teacher: Aizawa notices and neglects Izuku's mental health after noticing that he is emotionally unstable, and simply puts him in detention after he tries to transfer to the hero course. Later Hagakure mentions that he never got her a proper costume in the three years she was at U.A. And he himself thinks that he was more focused on the more powerful members of his class.
  • Arms Dealer: Hatsume is this in order to fund the Syndicate.
  • Artificial Limbs: Midoriya after he cuts off half his arm.
  • Attack the Mouth: Overlap with Tongue Trauma when Toga cuts off Tsuyu’s tongue.
  • Badass Normal: Midoriya is still Quirkless. He is also the undisputed leader of the Syndicate.
  • Bad Powers, Bad People: Mustard, Shinso, Toga, Shigaraki, and All For One all suit this trope, as their Quirks are labeled “Villain’s Quirks” by society.
  • Became Their Own Antithesis: Midoriya went from wanting to be a hero to public enemy number one in three in a half years.
  • Black Mail: David Shield gets blackmailed into working with the Syndicate with the information that he organized a terrorist attack and the government covered it up.
  • Blatant Lies: Kendo tries to pass Blackwhip off as another evolution of her quirk.
  • Body Horror: Dabi and Midoriya fit the bill, the former’s skin is burned and rotting, while the latter is missing his arm and his torso is made up of scars.
  • Eviler Than Thou: Midoriya pulls this on Tomura
  • Evil Former Friend:
    • Monoma to Kendo.
    • Yaoyorozu to Class A in general, especially to Jiro and Todoroki.
    • Hagakure to Class A in general, Uraraka in particular.
    • Kamakiri to Setsuna Tokage.
  • Evil Genius: Played with. Midoriya is clever and analytical, but he also makes some very biting mistakes out of spite and malice which end up costing him resources and allies.
  • Evil Gloating: Midoriya's trademark most of the time. Played straight with Tomura, Kendo and UA in general. Subverted with Uraraka, who succeeds in making him fly off the handle after mocking his quirkless nature and past weakness.
  • Evil Plan: Midoriya has a bunch of them. So far, notable examples include:
    • kidnapping strong UA students to serve as assets for his group.
    • using Toga's affection for him to break up and absorb the League into his own organisation.
    • killing Number One Hero Hawks by luring him into a rigged hostage rescue operation.
    • assaulting and sacking the Tokyo PD headquarters to erase police records of Syndicate and Shie Hassaikai members.
    • using the surrounding chaos to infiltrate UA and kill the (quirkless and retired) All Might.
    • infiltrating the U.S. Airforce base in Okinawa to capture David and Melissa Shield.
    • letting Gentle Criminal and Spinner get kidnapped by the MLA in order to locate and monitor its HQ
    • hijacking Uraraka's body in order to lure out and execute Aizawa.
    • using sleeper agents to crash the UA graduation ceremony, kill several prominent members and humiliate the remaining attendants, Kendo in particular.
    • use the above operation as a distraction to try and extract Gentle and Spinner from Deika City.
    • It must be mentioned that, with the sole exception of the last plan, all of these end up suceeding to varying to degrees.
  • Evil Is One Big, Happy Family: The Syndicate is remarkably close.
  • Evil Nerd: Midoriya still knows virtually everything about heroes.
  • Evil Virtues: Midoriya has ambition, determination, diligence, equality, love, patience, resourcefulness, and valor.
  • Evil vs. Evil: The Syndicate and the League of Villains, and later the Meta Liberation Army.
  • For Want of a Nail:
    • All Might didn't drop the sludge villain from the first episode so Midoriya never got the chance to prove himself to All Might. Because Midoriya didn't stop Muscular at the training camp Kendo tried to which proved herself worthy of inheriting One For All to All Might.
    • Because Izuku didn't inherit One for All he wasn't there to save Iida from Stain. Which resulted in him dying along with Manual. Todoroki and six other heroes were injured. Endeavor was enraged by his son's injuries causing him to murder Stain with the media watching, making Stain a martyr and giving Midoriya and his group the perfect time to escape.
  • Friendless Background: It is implied that Hatsume and Shinso are the first friends Izuku has had.
  • Friend in the Black Market: Giran to both the Syndicate and the League.
  • Friendly Enemy: Subverted with Midoriya. He acts friendly and refers to the heroes he is fighting as "friends" but it's clear he'll kill them if given the chance.
  • From Nobody to Nightmare: The Syndicate's main top members in general but especially Midoriya, a Quirkless general education student.
  • Gaining the Will to Kill: Gentle gains this after La Brava is shot by an attack helicopter.
  • Hero Killer: Izuku kills All Might, then later cripples Kirishima.
  • Hypocrite Has a Point: All Might told Midoriya a hero needs to stand on their own merit despite originally being Quirkless and being given his power, but he is right about heroes needing to have a quirk to survive the dangers of the job.
  • I Just Want to Be You: Bakugo admits to Kendo that he wished that he was chosen to be All Might's successor and inherited One for All.
  • Inferiority Superiority Complex: Monoma has this pretty badly.
  • It Gets Easier: Mr. Compress tells Gentle this before the battle with Hawks.
  • Knight of Cerebus: Midoriya's appearance makes the world of My Hero Academia much grimmer. People die, former heroes are turning traitor, and people are turning against heroes.
  • Knockout Gas: Possessed and used by both Midnight and Mustard.
  • Life-or-Limb Decision: Midoriya cuts off his own arm after getting it caught by Black Whip to avoid getting killed/captured by Kendo.
  • Mad Scientist: Like in canon, Hatsume has the personality of an insane inventor.
  • Magnetic Hero: Midoriya like in canon - although on the Villain side.
  • Mind Rape: Midoriya to Uraraka, after activating the "Baku" neural chip implanted into her brain.
  • Narcissist: Bakugo as usual takes this up to eleven.
  • Secret Keeper: Kendo tells Aizawa about One for All.
  • Smug Super: Though not exactly smug, inheriting One for All has not made Kendo humble. She has come to expect people treating her differently ever since being publicly announced as the heir to All Might. Midoriya calls her out on this hard.
  • Start of Darkness: Midoriya, after getting rejected from taking the hero course transfer exam, tried to prove himself by arresting a villain. After going into a shady neighborhood, he finds a purse snatcher and accidentally kills the villain in self-defense and leaves evidence at the crime scene. Later he talks with Shinso and Hatsume who believes that because Midoriya used her equipment she will be charged with being an accomplice to murder. The trio walks to Midoriya's apartment and finds it broken into and Midoriya, concerned with his mother, runs into the building containing three villains, with one being the brother of the villain he murdered. After a fight that kills one of the villains, Shinso and the other two agree that they will report them to the police if caught. So Shinso uses his quirk to make one kill the other one and then himself. A week later after trying to go back to how things were they decide they can't stay with the police investigating and they decide to run away.
  • Unholy Matrimony: Toga/Midoriya and Shinso/Hatsume.
  • Unwitting Instigator of Doom: Zigzagged and Deconstructed. Midoriya and co. insist that Aizawa and All Might indirectly caused the most dangerous terrorist organization in living memory to form, though both heroes maintain that the actions of the villains are their doing alone. Ultimately, the question is open to interpretation.
  • Quirky Miniboss Squad: The Syndicate's twin Strike Forces, Visigoth and Vandal, during the Black Day.
  • Readings Are Off the Scale: Midoriya's intelligence accounting to the author.
  • Reality Ensues: Boy does ever it in this fanfic.
    • You don't just bounce back from a lifetime of bullying and social isolation without emotional problems especially if you don't have any support.
    • After being horribly injured you don't just recover without any rehab or long lasting injuries.
    • Midoriya tried to transfer to the hero course despite being Quirkless and was rejected because it would be too dangerous for someone to be a hero without a quirk.
    • After the Syndicate revealed themselves to the world the parents and siblings they left behind had their reputations destroyed, lost their jobs, were forced to drop out of school, assaulted on the street, and faced social stigmatization.
    • Having six former students create or join a terrorist organization among other scandals causes a huge public outcry against U.A. and causes the school to be permanently shut for being a unsafe environment for students.
  • Red Baron:
    • Midoriya Izuku - Seraph
    • Monoma Neito - Chaudron
    • Hatsume Mei - Longshot
    • Shinso Hitoshi - Synapse
    • Yaoyorozu Momo - Pandora
    • Toga Himiko - Carmilla
    • Hagakure Toru - Lightwave
    • Kamakiri Togaru - Scimitar
  • Reforged into a Minion: Hatsume made some sort of device that weakened Tokoyami's consciousness and strengthened Dark Shadow's consciousness and blood-lust to the point where Tokoyami was enslaved to his own quirk.
  • Satanic Archetype: Midoriya villain name is Seraph for one. He creates distrust in society. He preys on people's weaknesses and corrupts those around him.
  • Save the Villain: Kendo promises Inko that she will save Midoriya to stop her from killing herself.
  • Shout-Out: A couple to Jo Jo's Bizarre Adventure when the Syndicate finish their drinks at the same and when Izuku tells Uraraka that it is "useless, useless, useless" to resist.
  • Sniper Rifle: Used by Hatsume during the Syndicate’s fight with Hawks.
  • Social Darwinist: Seems to be the main tenet of the Syndicate's ideology.
  • Sucky School: U.A. gets this reputation after the Black Day and because of all the other scandals.
  • Take Over the World: Midoriya's endgame is to take over Japan.
  • The Bad Guy Wins:
    • This happens multiple times, most notably on the Black Day, when the Syndicate erases police records, kills the Number One hero Hawks, infiltrates UA and kills All Might, AND kills off half a dozen heroes, while injuring Edgeshot and Mandalay severely enough for them to stop heroing.
    • Again at the army base, where the Syndicate escape with David and Melissa Shield, gaining some sort of leverage against the United States Government while crippling Red Riot and Suneater.
    • One again during the U.A. raid, where they manage to kill Vlad King, Aizawa and Uraraka, blow up the campus, and expose Endeavor’s familial abuse, while painting the next generation of heroes as incompetent and incapable of fighting back.
  • The Corrupter: Midoriya is meaninglessly responsible for corrupting five former hero students to his side.
  • The Starscream: Subverted with Neito he wants to be the leader because of his inferiority complex but is still completely loyal to Izuku.
  • Toxic Friend Influence: Being friends with Midoriya caused Shinso and Hatsume to become villains with him.
  • Tranquil Fury: Kendo when talking to Izuku after he killed All Might.
  • Teens Are Monsters: Applies to the first five members of the Syndicate, as well as Toga and Mustard.
  • Villain Respect: Midoriya seems to genuinely respect All Might, Kendo and Kirishima, even if he tries to kill them.
  • Villain with Good Publicity: The Syndicate gets a cult following larger than Stain’s after the Black Day.
  • Villains Act, Heroes React: This happens for practically all conflict in the story. Even the act of creating the Syndicate-hunting Task Force Fenrir is a reaction to the events of the Black Day.
  • Yandere: Toga even more so than usual. Especially with Midoriya.
  • You Have Failed Me: Monoma does this to some of Overhaul’s goons.
  • You're Insane!: Yaoyorozu to Midoriya, Hatsume, and Shinso after being kidnapped.

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