The history of the Symbol of Peace as well as the 8th holder of One for All, All Might from My Hero Academia.
Life before being a hero[]
Long ago in a city somewhere in Japan and most of humanity had developed phenomenal superpowers that would become known as "quirks" & paved the way for both super heroics & villainy alike, the man who would grow up into becoming the Symbol of peace was born under the name Toshinori Yagi. But he was born completely quirkless during the time when the world was completely overrun with chaos and anarchy all of which was under the control of it's then number #1 crime boss All for One, under the villain's reign Toshinori's early life was in complete disaster which ultimately resulted in his entire family being killed & lead to him becoming an orphan.
Despite this grieving loss, Toshi did not ultimately succumb to the madness that was going on around him and made him want to do something about it. Seeing so much destruction in the world, and concluded that no one really do anything about it because they didn't have a "real hero" to give them hope, this inspired the boy to become a powerful hero who could provide them that for innocents and defeat evil with a quirk or not. Little did he know that one day he would be able to just that in a way he wouldn't see coming which could allow him to change the world forever.
Gaining the Quirk he needs[]
A teenage Toshinori asking Nana to take him in as her apprentice.
One fateful day, as he was preparing to face off against a gang of villains with nothing but a lead pipe, Toshi watched in awe as he saw them all being swiftly dispatched by the pro heroine Nana Shimura. Astonished with what he had witnessed, Toshi asked the heroine to please take him on as her pupil, but she coldly refuses by reminding him that he doesn't even have a Quirk. But then the young boy explains his ideals saying that he wanted to create a world where everyone can smile and live happily together. For that to happen, he figured the world needed a "Symbol of Peace" to inspire a new age of harmony, and he believed he could become the hero that inspires people everywhere.
Absolutely impressed with the teenager's positive ideals and dreams, Nana immediately changed her mind and decided to take him in, under her training Toshinori trained tirelessly to battle the evil that surrounds him and be the hero he knows he could be. After a long time of leveling up, Toshi with Nana's help was able to be accepted into the prestigious U.A High school where he could prepare for his new hero work even better.
But before he could start his U.A school career, Shimura met up with Toshi in secret and revealed a secret to him that very few know of: she possessed a secret second & way more powerful quirk known as One for All that has been passed down for many generations, and Shimura figured he was ready for that power. Through some unknown methods, Toshinori soon went from being a quirkless stranger to a bearer of the most powerful quirk the world has ever known and he would hold that power for many years to come.
First years at U.A High & losing his master[]
Throughout his years of training at U.A High, Toshi studied hard to be a powerful superhero alongside his master and the latter's close friend and fellow pro hero Gran Torino, the latter who served as his homeroom teacher. Even though Toshinori's body was strong enough to utilize One For All at 100% from the start of training, Gran Torino decided he would mainly focus on teaching Toshinori how to properly fight, although his training methods were so harsh that he accidentally instilled an innate fear within him.
Throughout Toshinori's high school years, Nana and Gran Torino trained the teenager to harness the full power of One For All, but it was during the young hero-in-training's final year, that the three of them would face off against the most powerful supervillain All For One: whose quirk allows him to steal quirks from other while giving said quirks to anyone (if he wanted to) in a gruesome battle on an island. Despite all of their best efforts, the fight soon fell in the bad guy's favor & resulted in Toshinori and Torino being greatly injured, and while he wouldn't know it, just as he was about to be blasted by the mastermind, the fight would be ending in an event that would both haunt and scar Toshinori for the rest of his life.
All Might being forced away by Gran Torino as Nana sacrifices himself for them.
Realizing they won't be able to win, Nana decides to do what is necessary and forcibly pushed Toshinori out of the way. He calls out to his master as Gran Torino swoops in and flies him away. Nana says she's leaving the rest to Toshinori and asks her friend to make sure his dreams come true. With her back turned, Nana points to Toshinori, signaling his time has come to take her place. Nana turns to her successor and with one last smile, reminds him that she's counting on him to save the world, leaving a devastated Toshinori to look on in despair as his master would soon be killed by All for One soon afterwards... with the entire battlefield going down as well.
Following that depressing escape, completely distraught after the death of his master, Toshinori was unable to train properly to his potential as thoughts of revenge greatly plagued his mind and wished to avenge Nana, who he saw as a true hero. During one of his training sessions at U.A, Gran Torino reminds Toshinori that no matter what city he hides in, All For One's reach will find him as he has influence everywhere. Toshinori replies that he needs to try and fight back so he can become the Symbol of Peace and passionately throws a counter punch.
Gran Torino kicks Toshinori hard on the ground and reminds the boy that his enemy is a man with monstrous abilities who's walked the earth for more than over a hundred years, expressing that he could never defeat All For One in his condition. Frustrated, Toshinori cries while saying his master gave up everything to raise One For All's next torchbearer and admits he thought of her as his own mother, so as a way to lift his spirits, Gran Torino tells him he needs to cross the ocean after he graduates. He fears that if Toshinori doesn't escape the villain's reach, then Nana's sacrifice will be for nothing. Grieving, Gran Torino asks Toshinori if he understands why Nana let him escape, but he then asks Toshinori to save his power and train in the United States so All For One could not reach him and to gain experience as a hero, which gratefully restored Toshinori's resolve with a new purpose.
Toshinori putting on his signature smiling and officially becoming All Might.
The very spring, Toshinori graduated from U.A. at the top of his class and prepared to head the proud city of Los Angeles to start his hero career in America just as Gran Torino had suggested him to do. But before leaving, Toshinori reminded himself of his master's trademark smile. He shaped his hair and donned what would become his own signature smile for the first time as officially garnered the name that would make all villains feel fear while giving out hope to everyone else: All Might.
Starting his hero career at USA[]
Soon after arriving at the United States, Toshinori moved to Los Angeles, California where he rescued a group of scientists from an explosion, one of these scientist was an upcoming prodigy named David Shield. After being rescued David thanked him and noticed his destroyed attire, where he developed a sturdy hero costume that would come to be known as All Might's young age costume, Toshinori and David would quickly become best friends and acted as a hero team throughout California.
Toshinori shared his dreams with David; he told him that he desired to become a Symbol of Peace and shine a light on the world. Together they took down a pair of villains and David even relayed All Might's message to everyone watching, truly believing that one day All Might would become the world's top hero. It was also during this incident that All Might saved a young Cathleen Bate, which inspired her to become a hero just like him,
Eventually All Might met Melissa Shield, David's daughter, who was born Quirkless just like him once. Over time, All Might would serve as an uncle figure to the girl as he encouraged her to become a support engineer in order to help other people, just like her old man.
The Rise of the Symbol of Peace[]
Returning to Japan, All Might officially began his work as a hero and with even set up his own office he would call "Might Tower". As soon as he began stopping crime, All Might rapidly rose through the ranks of Japan's heroes to the point where he not only became number 1 in Japan, but is considered as such in the whole world and became wildly popular among the civilians with legions of fans & reporters just dying to meet him.
During his hero career, All Might met a huge fan of him who wanted to be his Sidekick, initially, he refused due to his policy of not taking anyone. However, the guy proved so persistent, as well as having a quirk that allows him to see the future, that All Might eventually let him be his sidekick, under the name of Sir Nighteye, and together they continued to keep crime down where it soon grew trustworthy enough that he revealed the secret of his quirk to him.
With his newfound support, All Might moved Japan's crime rate down to below 6% and his meteoric rise would not only persevere for years, but would continue through the Bronze, Silver, and Golden ages of his career. He soon became known as the world's Symbol of Peace just like he dreamt of. Though while he may have reached the pinnacle of dreams and inspired a new age of Pro Heroes where the country finally knew the peace he had always wanted, All Might never stopped and feared the day when he would have to face All for One himself.
Underground Masquerade[]
One day after pulling a 3-day work day of stopping crime, All Might eceived another emergency dispatch from Osaka, though an exhausted Sir Nighteye wanted to check first if other local heroes can take care of the situation first. But All Might transformed and blasted off, knowing Osaka's calling for him personally.
The reason for said emergency was that it is caused by All For One, who in his desire to steal a super-speed Quirk from the hero O'Clock, had transformed several people into a violent mob that was rampaging through the city. Once he arrived to Osaka, and in the blink of an eye, All Might defeated all the villains. Then, after being informed of the situation, he goes to the place where the crowd emerged, but when he arrived, all trace of All For One had disappeared, with only O'Clock and a couple of his allies at the scene.
After fixing the situation, the citizens of Osaka rejoice as All Might also topped a new record in defeating nearly one hundred Villains in one fell swoop, as well as assisting in many aspects of the clean up, before leaping off and heading back home for a proper rest.
Vigilantes[]
Later on, All Might got himself involved in a series of events caused by a criminal organization known as the Villain Factory, whose goals were unknown. For several weeks, the Villain Factory was dedicated to distributing through the Naruhata streets a drug known as Trigger, an illegal substance that boosts Quirks but turns its consumers into violent rampaging civilians, causing several incidents.
One day, one of the Factory's agents, Kuin Hachisuka, uses her bee swarm summoning Quirk to inject the drug into innocent civilians, turning them into a horde of "Instant Villains", causing chaos at the streets. Fortunately All Might and several other heroes appear and in a short space of time, they manage to take down all the Instant Villains.
Though because of the outbreak, detective Eizo Tanuma organized a meeting in the Police Station with several of the heroes who helped to stop the outbreak to discuss the situation and the best action to take. Because All Might could not attend, Eizo sent his partner Naomasa Tsukauchi to the Might Tower to request All Might's help in dealing with the Trigger outbreak, specifically telling him to talk to his secretary-manager... which is just his "de-flated state".
On the top floor, All Might tells Naomasa that he will be returning shortly from Hokkaido. The Might Tower's roof opens up and All Might lands down. Many reporters ask All Might questions about global affairs. However, All Might apologizes and decides to leave office affairs to his staff; All Might retreats behind the Might Gate, which is only accessible to All Might himself.
Naomasa couldn't talk to All Might but went to the receptionist to ask for Mr. Yagi. Coincidentally, Toshinori Yagi (All Might in his true form) is by the receptionists as well and hears Naomasa's request. Toshinori and Naomasa chat in Might Tower cafe, with Toshinori introducing himself as Might's Productions Second Secretarial Office and that he handles All Might's private affairs. Naomasa explains the Instant Villains rampages that have been happening recently, to which Toshinori suggests that heroes should be more cautious going forward.
However, while they are having a conversation, Toshinori constantly makes excuses and runs to perform quick deeds as All Might. In the end, Toshinori accidentally returns with the uniform still visible, revealing his dual identity as All Might. Toshinori asks Naomasa to keep his identity a secret, to which Naomasa replies that he will, but he tells Toshinori that the Police Force is troubled by his spontaneous acts of heroism and calls him out on not filing reports on all of his heroic activities, as customary of a Professional Hero. Toshinori is well aware that he must follow standard procedures when heroes wield their powers, but he wants to help people without being burdened by unnecessary procedures. While Naomasa understands him, he tells that every hero must follow the rules, and it would be a bad example if people know that the Number One Hero neglects his Hero duties.
Taking pity on him, Naomasa offers to file the reports himself, letting All Might act without any worries apart from telling him about his unplanned Hero activities. Toshinori is delighted with Naomasa's offer and accepts it, exchanging his personal contact number with him. The next day, Naomasa receives several cases of All Might's unplanned Heroics and wonders if it was Eizo's plan to push All Might's ordeal onto him from the start, leading to them to become close friends.
For the next few months, they have several meetings to keep themselves informed of their mutual jobs, with All Might carrying out his hero duties and Naomasa continuing with the police investigation to stop the traffic of Trigger and the Villain Factory. One day, after resolving a series of incidents in Okinawa, Toshinori Yagi returns to the Might Tower for a meeting with Naomasa in the building's cafeteria, only to find out the detective has his arm in a sling and several fractures. Naomasa explains to him that his injuries are the result of a confrontation he had against Number 6.
Although he tries to not give importance to his injuries, Toshinori is worried and tells him that if he had known, he would have come to help him. The detective replies that his public figure, All Might, can't be taking jobs for personal reasons, and can't prioritize saving certain people because they could be taken hostage or used as a diversion by villains. Toshinori can not deny that he is right
With the start of a new year, detective Naomasa and Toshinori have another meeting, in which they say they hope to continue working together another year. Naomasa informs him that recently they have obtained new and important information about the case he is investigating. All Might offers to help him but, although he is grateful, Naomasa tells him that it is not possible.
Police investigations lead Naomasa to discover the place where the Villain Factory carries out its illegal experiments. A police raid takes place, but Number 6, the same villain who left Naomasa badly wounded the previous time, is there, and he blows up the place before escaping with five creatures called Bombers, in order to attack the Tokyo Sky Egg and kill Captain Celebrity. Luckily, Naomasa survives, and in a police helicopter, he goes to the Tokyo Sky Egg, where he sees several heroes fighting the Bombers. The hero Eraser Head is with him and asks him to call All Might to come to the place to help because although it seems that the heroes are winning, the threat is not over yet.
Naomasa agrees to Aizawa's request and calls All Might, who at that time is in a meeting at the Might Tower as Toshinori. Upon hearing Naomasa's call, Toshinori apologizes and goes to a secluded area to talk to him. Naomasa tells him that the Tokyo Sky Egg is in trouble, but before he can clarify the situation, Toshinori hears an explosion on the phone. Seeing how his creatures were being defeated, Number 6 had ordered the last one to self-destruct in a powerful explosion, which caused the Tokyo Sky Egg to begin to collapse, with thousands of people inside.
Upon hearing the explosion and Naomasa's request for help, the number one hero immediately leaves the Might Tower, taking him only a few seconds to reach the place and, in a flash, he smashes the remains of the tower out of the way, flattens the ground, brings animals to safety and lands the Tokyo Sky Egg dome safely, saving everyone. The bystanders are stunned by that inhuman feat and start cheering for All Might. Then he notices Captain Celebrity and Koichi are still falling. He immediately rescues both. All Might congratulates Captain Celebrity for what he has done and signs Koichi's hoodie.
The media reports the Bombers' attack on the Tokyo Sky Egg, while hosting a large-scale event with some of the most famous heroes, and how All Might saved everyone from the disaster when the tower began to fall. Journalists and reporters ask All Might about his opinion. He simply thanks that there are no fatalities, and praise the efforts of the Pro Heroes, law enforcement and relief workers to care for the victims.
After his statement, he says goodbye and runs away, being pursued by the media. After eluding them, All Might, now as Toshinori Yagi, returns to the place and meets secretly with Naomasa. He tells him that he's going to stick around for a while in case there's another attack. Naomasa apologizes for getting bent out of shape, but Toshinori tells him that it's fine and that it was his impassioned plea that got him there in time. Toshinori explains to Naomasa that his Quirk has a strong psychological component to his strength. When he hears a plea for help, he feels it like a direct order to All Might. He tells him that when he accepted his power in order to save everyone and give them hope.
Naomasa feels confused about how he "accepted" his power, and All Might realizes that he has unwittingly revealed an important fact regarding One For All and its secrets. Before their conversation continues, they are interrupted by Shota Aizawa, Fat Gum and Monika Kaniyashiki, and Naomasa introduces them to Toshinori, who thinks that one of these days he will have to explain Naomasa everything about the secret behind All Might.
In the distance, at the top of a building, Number 6 watches the whole scene, still furious that All Might ruined his plans. However, he does not give up. and uses a device again to reactivate the Bombers' remains. The busted Bombers' pieces and bits start to regenerate, combine and grow into a gigantic and uniform mass of flesh that bursts releasing a swarm of two hundred mini Bombers to attack everyone, in his last attempt to cause a tragedy. Number 6 is confident that even All Might will not be able to destroy all the creatures, so he is sure that this attack will cause some deaths. Everyone is surprised at this sudden attack, but it generates the appropriate distraction for Toshinori to transform back into All Might, destroying the entire swarm with his Nebraska Smash, saving thousands of lives again. Number 6 can not believe what he just saw.
Several years have passed since the Sky Egg Bombing, and since then the mastermind behind it, Number 6, has cooked up a revenge plan against Koichi and a hospitalized Kazuho. A few days later, as promised, Number 6 decides to carry out his threat, and to do so, he first causes a blackout in Naruhata, cutting off all communications and causing all series of riots with his Anonymous ordered to keep the heroes busy. He then storms the hospital, but Koichi and his allies force him to flee. With communications cut off, Naomasa asks Koichi to leave Naruhata and summon All Might, while they take care of the rest, but in the end Koichi decides to stay to face Number 6 himself.
Meanwhile, in the cafeteria of the Might Tower, Toshinori is relaxing, eating his meal, and received the news broadcast talking about the Naruhata crisis. Toshinori hopes Naomasa's job doesn't get delayed due to the chaos. At that moment, he receives a phone call asking him to contact All Might to stop a Namahage attack in Akita. Toshinori decides to leave and tells the waiter not to clear his plate since he will come back. Once the problem in Akita is solved, Toshinori returns to the cafeteria to finish his dinner, but he is called again to request All Might to solve another problem in Tokushima.
Eventually, news of the escalating threat, particularly the giant fiery kaiju that Number 6 has transformed into, reaches Toshinori's attention through the news, blasting off out of the Might Tower toward Naruhata. In no time flat, he breezes past Endeavor through the sky and entering the city, effortlessly knocks all the mini bombers that emerged from the kaiju into the air, allowing Endeavor to safely dispose of them. With the danger averted, All Might rushes into an alleyway to transform back into Toshinori, where he is helped by Naomasa. With the threat of Number 6 and the Villain Factory seemingly over for good, Toshinori returns to his daily routine at the Might Tower.
Fated showdown with his nemesis & destiny[]
All Might successfully defeating the Symbol of Evil.
Eventually though, on one fateful day, destiny caught up with him, and once again, All Might was brought face to face with All For One in a single brutal combat. Their battle was a gruesome without neither side relenting, but after a longtime of fighting, the Symbol of Peace became the first torchbearer to defeat All For One, by completely obliterating his head, and severely damaging the rest of his body, which finally "ended" the Symbol of Evil's reign over Japan once and for all, though All Might took steps to ensure that their battle wouldn't reach public eyes or records and kept a secret from most people in the world.
However, though this showdown ended with the hero's victory, this proved to have the cost of critical injuries dealt to him, as All Might's stomach was lost, and his respiratory system was damaged beyond repair. This created a time limit on how long All Might could use One For All, reducing his ability to be the Symbol of Peace. Regardless, this did not halter his decision to continue being the hero both he and the world saw him as.
Due to his injures and condition, Sir Nighteye pleaded with All Might to retire, as he didn't want All Might to push himself to the brink of death, but he refused, something that would ultimately lead them to end their partnership. U.A's newest principal Nezu agreed with Sir Nighteye and told All Might that he could look for a successor of One For All in U.A., an idea that Sir Nighteye considered as the best option. Toshinori agreed that the Symbol of Peace would need a successor but refused to step down in case any new villains stepped up.
During his time working there All Might spoke with Nezu about a potential replacement, where the principal recommended that Mirio Togata, U.A.'s newest number 1 student, would make a fitting successor to wield One For All, with his own quirk to back him up as well. Though while All Might most definitely thought that Mirio would be a perfect successor, especially since his personality mirrors himself, little did he know was that he would find someone else who would not only surpass his expectations, but continue to be even stronger than he could ever be.
Meeting his successor for the 1st time[]
All Might meeting Izuku for the first time
6 years after his fated battle with the king of the underworld, All Might had used up most of his now-daily power usage limit, All Might went out grocery shopping when suddenly, he spots a Sludgy criminal fleeing after robbing a bank. Chasing down the villain, All Might catches up to him just as he had possessed the body of a young & quirkless man named Izuku Midoriya, who he smashes to bits and traps him in a bottle. After waking up an unconscious Izuku, he quickly sees that he's a big fan of his and signs what's left of his notebook before heading to turn the criminal in.
All Might in his true form revealing his dreadful crack to Izuku.
However, the young fanboy accidentally holds on to All Might after he leaps high into the air, forcing him to land on a building for his safety as he tries to leave again, but Izuku questions him on whether he can become a hero without a Quirk. But before answering, All Might's time in his "muscle form" comes to an end and he reverts to his true form, shocking Izuku and forcing him to reveal his dreadful injury.
the broken man then gives the harsh reality to Izuku that professionals must always put their lives at stake to save the day and thus cannot openly say whether it is possible to be a Hero without a Quirk as it may not be possible. Though All Might says that if Izuku cares about saving people, he can always go on to become a policeman (even though such a job has become pretty ridiculed today) before telling the boy that while his dream is not a bad one, he warns him not to obscure the facts and then leaves to the police station.
Unfortunately, not only did the Symbol of peace just realized that he wasted time in talking with the young man, but he accidentally left the bottle containing the criminal behind and open... allowing him to escape and going on another rampage. Making him ridicule himself for making such a rookie mistake as he is forced to watch the criminal possess another young man named Katsuki Bakugo with an explosive quirk and go on another rampage leaving him to do nothing at all to help, much to his displeasure.
All Might saving Izuku once again.
However, to his surprise, All Might watches in awe as he sees firsthand how Izuku's bravery is inside of him as he desperately tries to save Katsuki from the villain in spite of him being quirkless. While the heroes are unable to do anything, this heroic action is enough to get All Might inspired enough to once again be the hero everyone knew he is despite his conditions, at this he steps into the chaos and uses one of his signature moves to defeat the criminal, officially arresting him and saving both boys.
All Might officially naming his successor.
Later on that same day following Izuku's daring rescue, All Might appears before Izuku and thanks him for his heroic endeavor before telling him something important. All Might tells Izuku that he was touched by his bravery for trying to save someone despite not having a Quirk, and tells him that he too can become a hero, leaving a satisfied fanboy crying tears of joy.
With that out of the way, All Might then reveals to Izuku that his Quirk can be passed down and that he has chosen Izuku to be the next one to inherit his Quirk. Izuku is shocked and asks why he would give someone like him his Quirk, to which All Might responds that he has been searching for a successor for a long time and now has found someone to whom he does not mind giving his Quirk, saying that despite not having a Quirk, Izuku tried to save Katsuki while other people and heroes stood idly by, hearing this gives the quirkless boy newfound hope for his dream and a still sobbing Izuku happily accepts All Might's proposal.
Training his new son-figure for great things[]
All Might helping his new successor train for his future.
After taking the decision to take the young boy under his wing, All Might begins his new successor's training by taking him to a very polluted coastline where he has Izuku clean up all the trash as part of training his body to become strong enough to withstand the power of his Quirk, otherwise, it can result in Izuku losing limbs. After 10 months have passed, Izuku surprises All Might by cleaning the whole beach and becomes a genuine vessel. Amazed by his feat, All Might rewards Izuku for his hard work by having Izuku consume a piece of his hair, enough DNA to transfer One For All to Izuku.
Entrance Exam Arc[]
All Might happily telling Izuku that he's going to U.A.
After transferring his quirk to Izuku, All Might proceeds with his next phase in preparing his protege by being one of the reviewers in the U.A. Entrance Exam, and is especially pleased to see that Izuku used his Quirk and his willingness to sacrifice himself to save a girl named Ochaco Uraraka. After the exam finishes, All Might finalizes the paperwork required to officially become a U.A. faculty member.
He then delivers Izuku's test results via holographic video. He first apologizes for not speaking to Izuku in the week after the exam. He continues, telling Izuku he did fine on the written exam and got zero combat points during the practical. However, he goes on to explain that Izuku's brave actions during the exam were enough to score him sixty rescue points, giving him more than enough points to get accepted into U.A.
Quirk Apprehension Test Arc[]
All Might with his colleague Mr. Aizawa.
During Izuku's first week and U.A., All Might is seen secretly inspecting Izuku's participation in the pitch trial of the Quirk Apprehension Test, and is impressed with Izuku's focus of One For All at the tip of his finger and for his quick thinking of using the Quirk in the shortest time possible at the last moment as a workaround for not being adjusted to the Quirk. All Might then approaches retired hero & his successor's homeroom teacher Shota aka the hero Eraser Head, calling him a liar and says that he saw that he once expelled an entire new class of first-graders last year. All Might knows that he kicks students out with zero chances, finding it weird that he did not expel Izuku on the spot and concludes to him that even he felt Izuku's raw potential.
However, Shota replies that Izuku's are above the "zero" mark and that is all. He continues to say that he can kick out anyone whose chances drop below that mark at any time. All Might then says that they will never get along. All Might later appears as the teacher of the Foundational Hero Studies class, saying that they will have a battle of trial for the period. He tells his students that U.A. has prepared their hero costumes and says to them to get changed into their costumes for the Battle Trial.
Battle Trial Arc[]
All Might overseeing the Battle Trial.
Later that day during the titular test, All Might complimens the costumes of his students before he noticed the similarities to his image in Izuku's costume and was internally annoyed by it. Though he brushes it off and soon explains to his students that they will be separated into Heroes and Villains for the Battle Trial and it will be a two on two team battle. He explains that in the Battle Trial, the villains will guard a nuclear weapon they intend on deploying and the heroes must stop them. He goes on to further say that the heroes can win by capturing the villains or reach the nuclear bomb before time runs out and the villains can win by capturing the heroes or keeping the core away from the heroes before time runs out.
All Might then decides that the teammates and pairs will be chosen by lottery, after that All Might draws from the boxes and says that the pairs that will do battle are the heroes Izuku and Ochaco versus the villains Katsuki and the kid with the speedster quirk Tenya Iida. He explains that the villains will go in the building first, and then after five minutes, the heroes will go in. He tells them to go all out as it is a practical exercise, although he says that he will stop the Battle Trial if things get out of hand. All Might is seen in the surveillance room, saying to himself that Izuku will not get any special treatment from him and will grade him as harshly as the rest.
All Might watching Izuku & Bakugo fight.
While watching Izuku and Katsuki battle, All Might is impressed by Izuku knocking down Katsuki and is revealed to have read Izuku's Hero Analysis for the Future notebook in their first meeting and recognizes that the boy has memorized Katsuki's moves and used it to his advantage. All Might soon tells Katsuki to stop after seeing what his hero costume can do to amplify his Quirkand becomes worried for Izuku after Katsuki initiates a huge explosion. All Might then tells Katsuki that if he uses another huge explosion, he will end the Battle Trial and he will lose, reprimanding him for trying to destroy the building that protects their stronghold (the core) calling it foolish. Although he feels that he should stop the Battle Trial, he thinks that it would be better for Izuku and Katsuki to continue battling as it is necessary for the future that they envision themselves. After being asked to stop the Battle Trial, All Might is about to suspend it, but after hearing Izuku call out to Ochaco, he stops and after Ochaco touches the core, a proud All Might announces that the Hero team wins.
All Might then goes into the building and approaches a distraught Katsuki, telling him that it is time for his critique, and he assures Katsuki that it doesn't matter whether he won or lost, but that he takes one look back, reflect on his experience and move on with life. In the monitor room, All Might says that Tenya Iida was the best during the Battle Trial. After being asked why he questions his students as to why he chose Tenya. After another one of the students named Momo Yaoyorozu gives her answer, he is shocked by her accurate deductions and nervously gives a thumbs up to her for being absolutely correct.
During the next Battle Trial, All Might is impressed by the youngest son of Japan's no. 2 hero Shoto Todoroki for not getting his comrade caught in the attack and at the same weakened his opponents' positions as well as refrained from damaging the core. After everyone else participates in the Battle Trial, he tells them all that they did well and instructs them to change clothes and head back to class. Although he wanted to give Katsuki counseling for his self-confidence, he realizes that his transformation is running out of time and head to the nurse's office.
Arriving there, the Symbol of Peace finds himself reprimanded by the school nurse Recovery Girl for letting his disciple indulge in too much attacking and he says that he has nothing in his defense, they talk quietly, with him saying that his Quirk is secretly known by a selected few, including her. Recovery girl then asks if it is important to be a "Natural Born Hero" or "The Symbol of Peace" to which he replies that without such a symbol, the society of superhumans would fall to evil, making himself vow to be a better guide to Izuku.
All Might attempting to cheer Bakugo up.
Once the day is over and class is dismissed, All Might then appears before Katsuki, just after he and Izuku had a heated debate over their first battle, where he once again begins trying to counsel him on self-confidence. Although he is told in response by an angry Katsuki that he will surpass him as well before storming off back to his home in a bitter fury.
With this once-again failed attempt at counseling a hot-tempered student, the number one #1 superhero-turned-regular teacher decides to leave Katsuki alone for the time being, finding that teaching him alongside his new apprentice and every other student in their class will be his most difficult challenge yet, leaving him prepare for far more crazy shenanigans like this to come.
Unforseen Simulation Joint Arc[]
Sometime later, Izuku tells All Might that he revealed to Katsuki about the secret of the One For All Quirk, something his explosive rival didn't believe in. However, All Might is not angry about it since Katsuki interpreted it as nonsense and tells Izuku to keep the secret to himself and no one else since if the villains knew about his secret, all of them would probably want to steal his Quirk, unaware that those villains are working to get it right now.
On one fateful day, while heading to U.A., All Might witnesses heroes Kamui Woods and Mount Lady fighting the villain Habit Headgear, who had a family as hostages. When All Might intervenes and saves the family in the process, he then realizes that his Quirk is steadily dropping off, & the amount of time he can keep his Quirk activated has decreased. Fearing this, he tells the search-&-rescue teacher Thirteen that he will not be able to appear at the Unforeseen Simulation Joint to teach the class due to him using his Quirk too much before taking a nap.
All Might arriving at the USJ to bring some justice.
However, upon waking up, All Might tries to contact Thirteen and Shota, but to no avail because an actual army of criminals calling themselves the League of Villains appeared out of the blue in an attempt to kill him, but they decide to go for the students there first. Knowing that his protege & his classmates need help, he decides to go to the U.S.J, but Nezu arrives to have a discussion with him, being held up by Mr. Principal's endless talking, seeing that he has not changed either, but he makes through & after meeting with Tenya, he arrives at the USJ in time, taking his tie off ready to bring the villains down.
As soon as he comes down, All Might quickly dispatches the villains in front of Shota, apologizes to him for not being here and picks him up. He then rescues Izuku alongside other students named Minoru Mineta and Tsuyu Asui. All Might tells the three to head to the entrance and leaves Shota with them. When Izuku tries to dissuade him into fighting, All Might tells him it is all right before he prepares to fight the League's young leader (with a quirk that reduces anything & anyone to dust by touching them) Tomura Shigaraki and his lieutenants the foggy-like figure Kurogiri, and monster called Nomu specifically created to kill him.
All Might does his best to hit Nomu as hard as he can, but upon hearing Tomura Shigaraki blurt out the information on Nomu, All Might uses a backdrop slam against Nomu, causing an explosion. However, Kurogiri opens a gate with his Quirk, causing All Might's attack to fail and allows Nomu to grab All Might. However, the combined efforts of Katsuki and Shoto allow him to escape from Nomu's grasp.
All Might brutally defeats Nomu.
The Symbol of Peace then blocks a punch from the regenerated Nomu, giving Katsuki some time to evade. All Might then calls Tomura's view on the title Symbol of Peace as rubbish. He then tells the children to escape, thanking Izuku for his concern and says that he is fine. Realizing that he has only a little time left, All Might decides to go all out & he and Nomu get into a fistfight and All Might sees that he can absorb each punch at 100%. All Might decides to surpass his 100% and launches a devastating punch against Nomu, sending him completely flying out of the U.S.J, defeating him, all claiming that it would've taken five punches top to defeat someone like Nomu but now that he is not in his prime self anymore.
All Might in his true form being covered by Cementoss.
With his most powerful soldier out of the way, All Might prepares to fight Shigaraki, but he then realizes that his fight with Nomu has completely left him powerless, not even having the strength to take another step. This leaves Tomura and Kurogiri to attack All Might, but luckily Izuku intervenes to protect the powerless All Might. However, one of the heroes that Tenya called as backup stops Kurogiri and Tomura from attacking him. He then goes back to his normal form as Eijiro Kirishima approaches him and Izuku, he gets worried that his secret would be exposed but luckily one of the few heroes who know about his condition, Cementoss, arrives and blocks Eijiro's way before he discovers All Might's weak form, much to his relief and gratitude. Though when Izuku says he could not do anything, All Might says it is not true, telling him that if it were not for his few seconds of bravery, he would be dead and thanks him for saving him.
All Might in the nurse's office.
After such an eventful day, All Might and Izuku are taken to the U.A. Nursery to be treated back to full strength by Recovery Girl. Soon detective Naomasa arrives to inform him and Izuku freaks out that he sees All Might in his true form, but All Might calms him down by telling him that Naomasa is one of the few who knows his secret and that he fully trusts him. Then All Might asks the detective about the students' conditions, as well as Shota and Thirteen. Naomasa tells him that the students are unharmed, but Shota and Thirteen are injured, but not in danger of death, relieving All Might worries. All Might tells Naomasa that the students fought bravely and that they will become great heroes, to which the detective agrees, though while this is treated as a victory by the other heroes, All Might knows to well that this won't be the last they here of the villain league.
U.A. Sports Festival Arc[]
.webp){kind=link}
All Might meeting the other teachers.
Sometime after their first battle with the League of Villains, All Might heads to a meeting with the other teachers, commenting on Tomura's arrogance and when he started to panic when things went wrong. After taking Tomura's childish personality into consideration as well as his determination, All Might concludes to those in the meeting room that Tomura is a mere character who believes that he is the center of attention, an "adult-child".
Following the meeting, All Might finds Izuku and asks him to have lunch with him, in the resting room, All Might asks him how he is handling his Quirk and Izuku replies that he has gained adjustment to the Quirk, saying that he did not break his arm when punching Nomu, which pleases All Might.
Though after this, he sadly tells Izuku that his time as the Symbol of Peace is heading to an end, much to Izuku's sadness, though he attempts to raise his spirits by telling that the U.A. Sports Festival is an event the whole country will be watching and tells Izuku that during the event, he wants the whole world to know that he is the new generation's "All Might" and the future Symbol of Peace, shocking Izuku. All Might states that he wants Izuku to demonstrate his full potential to everyone at the Sports Festival. After Izuku doubts himself, All Might encourages him, stating that the difference between someone who aspires to the top and someone who does not will have a huge influence when he steps up and steps forward in society. All Might says that he understands Izuku's feelings towards his condition and will not force him to do anything, but asks him to remember his feelings during the time he cleaned up the Seaside Park
All Might with the others watching the festival.
On the day the Sports Festival begins, All Might joins the other teachers in the stands and applauds happily when his successor manages to win first place before beginning to ponder about Katsuki, thinking that his ranking in the Obstacle Race, combined with the sheer versatility of his Quirk makes him a popular choice for a teammate. Near the end of the Cavalry Battle, after seeing Katsuki using strategy to get Neito Monoma's last headband, All Might comments to himself that Katsuki, despite no one telling him, is grasping instinctively the difference between those who do not necessarily aim for the top all of the time and those who always do.
All Might chatting with his (unknown to him) rival, Endeavor
When the lunch break begins, All Might goes into his muscle form where he meets the hero ranked behind him Endeavor, saying it's been a while and asks him if he can have tea with him, but Endeavor denies and leaves. All Might stops him, saying that his son Shoto was able to show a great performance even without using half of his power All Might then asks him for advice on how to raise the next generation, but this makes Endeavor, who has long envied him & had gone completely crazy over the fact that he can never surpass him no matter what he does, comments on All Might's attitude, finding it to be annoying and then says that he will make Shoto a hero that surpasses All Might before angrily walking away.
Following this, All Might goes to see Izuku before the beginning of his match. After Izuku says that he can raise his strength only a little with One For All, All Might says that originally, on a scale of one to a hundred, the amount of strength Izuku's body could tolerate it was zero, but now it is a five. When Izuku starts frowning, All Might cheered him up; telling him to do his best and encourages him to smile when he is full of fear and anxiety. All Might then concludes that he is always watching Izuku. Toshinori decides to watch the fight between Izuku and Hitoshi from the arena entrance. He begins to freak out when Izuku falls under the influence of Hitoshi's Brainwashing Quirk and begins to walk out of bounds. Toshinori is uttering for Izuku to stop, but to no avail. Izuku manages to break out of the trance since something strange happened with the One For All. After this, he defeats Hitoshi and moves on to the next round.
All Might goes to the infirmary to see Izuku. After Chiyo scolds All Might for putting pressure onto Izuku, Izuku tells All Might about the mysterious shadows he saw, saying that the shadows helped him break free of Hitoshi Shinso's Brainwashing and asks All Might if what he saw were the people who wove the power of One For All. However, the symbol of peace replies that he too saw something similar to what Izuku saw in his younger days. All Might theorizes that the people he saw were imprints of those who have used One For All but not the sort who have a will on their own and concludes that Izuku broke Hitoshi's spell, not because of the predecessors of One For All but because his willpower from seeing the vision helped him break Hitoshi's brainwashing. Izuku is not completely satisfied with the explanation, but All Might tells Izuku not to dwell on it and tells him to go watch the next match. After Izuku leaves, Recovery Girl says that Izuku also saw him in the vision, to which All Might replies that it is a good thing.
The tournament continues until it is Izuku's turn again. During the match between Izuku and Shoto, All Might watches on, worried about his student's health. After Izuku states to Shoto that becoming Number One without his full strength as well as to disown someone is a joke, All Might remembers Endeavor's words of making his son surpass him. Soon after remembering, All Might theorizes to himself that Shoto won't use his firepower due to the discord between him and his father. He then tries to figure out what Izuku is trying to do. After Shoto activates his firepower, All Might concludes that Izuku is trying to save Shoto from his cruel fate, despite wanting to win. All Might notes that Izuku is going out of his way to help his opponent, causing him to wonder which of them is the joke.
All Might and the others checking on Izuku
After Izuku is defeated by Shoto, All Might goes to Recovery Girl's Nurse's Office to see Izuku. She scolds All Might for making Izuku push his limits and tells All Might not to try and praise Izuku for going so far. When Izuku apologizes to All Might for not living up to his expectations, All Might's face is filled with regret. After Izuku tells All Might that all he wanted to do was help Shoto and asking for forgiveness, All Might responds by saying that his match was simply an unfortunate outcome but praises Izuku for helping Shoto with his problem, saying that reaching out and helping people with their personal problems is one of the principal qualities of a Hero, happy that Izuku has such a quality. After Izuku's surgery is finished, Chiyo tells All Might to try and find a different method for Izuku to use his One For All. Izuku leaves Chiyo's room with All Might and they walk down the corridor. Izuku sadly tells All Might that he thinks someone else should be his successor. However, All Might tells Izuku that he used to be Quirkless just like him, which surprises Izuku. Izuku says to All Might that he never knew about that information causing All Might to reply that Izuku never asked him.
All Might tells Izuku that he chose him to be his successor at first due to him being similar to his former self and admits to Izuku that he has surpassed his expectations after seeing Izuku's actions. He then says to Izuku that only he will be able to truly shine with the power of One For All. Having been cheered up by his mentor, Izuku apologizes to All Might. All Might tells him to watch the rest of the U.A. Sports Festival, to which he happily complies.
All Might awarding the top 3 competitors.
Following the final match between Shoto and Bakugo and the awards ceremonies begins, All Might enters his hero form appears at the closing ceremony of U.A.'s Sports Festival to hand out medals to the winners of the Freshmen Stage: Fumikage Tokoyami, Shoto, and Katsuki. As All Might makes his way into the stadium, Midnight unintentionally talks over him, ruining All Might's entrance. All Might gives Fumikage his medal for placing third, congratulating and acknowledging his strength, he then gives Shoto his medal for placing second, congratulating him and understands that Shoto had his reasons for suppressing his fire side in the final match, before going to give Katsuki his medal for first place, finding the restraints to be a little too much. All Might takes Katsuki's face mask off, causing Katsuki to angrily yell that he does not deserve to be Number One. However, All Might tells Katsuki that society will acknowledge him as Number One even if he does not. All Might gives Katsuki his medal. Afterwards, All Might gives a speech to everyone, saying that everyone who participated in the Sports had a chance to stand on the podium. He goes on to say that the future generation of heroes looks bright. All Might yells out "Great Work", much to the confusion of the crowd who thought he would yell "Plus Ultra", causing him to reply that he thought "Great Work" would be far more appreciative.
Vs. Hero Killer Arc[]
All Might surprised that Gran Torino wants to intern Izuku
A few weeks following the sports festival, Izuku's class begins receiving recommendations from numerous heroes willing to take them up as their sidekicks for the week, while he is in the faculty room, All Might informs All Might that a new nomination has just arrived for the freshmen, telling All Might that the nomination is for Izuku. Excited, All Might immediately goes to check who nominated his successor, but the moment he does, the symbol of peace becomes completely flabbergasted at the superhero who nominated Izuku.
A traumatized All Might giving Izuku his mentor's address.
After school that day, All Might appears in front of Izuku as he is about to leave class where he and Izuku walk along the corridor. All Might says that Izuku received a nomination, much to Izuku's surprise and he also tells Izuku that the person who nominated him was his old homeroom teacher Gran Torino. All Might also says that Gran Torino was a close friend of his predecessor, but now he is in retirement. All Might says that Gran Torino knows about the One For All Quirk which is the reason why he must have nominated Izuku. Shaking nervously, All Might wonders if Gran Torino was compelled to nominate Izuku due to him thinking that his guidance towards Izuku was lacking, becoming terrified by the fact that he is taking up his Hero Name again. While trying to stop his legs from shaking, All Might tells Izuku that while it is his duty to train him, he should select Gran Torino as his work place of choice and see what he can learn from him. Before leaving, All Might informs Izuku that his hero costume has been repaired.
All Might worried that the Symbol of Evil preparing to return.
Afterwards Naomasa meets with All Might at U.A. where he informs the Symbol of Peace that the Police Force has tried everything to get information out Nomu; however, everything they tried did not work. Naomasa says that they instead looked into Nomu's background through DNA analysis and have discovered that Nomu was once a human with a criminal record, he explains that the DNA analysis also revealed that Nomu has the DNA of at least four different humans mixed with his own. Naomasa concludes that Nomu is an artificial human-made to measure up to multiple Quirks and that having all the DNA in his body as well as his body modified caused Nomu's brain activity to stop. Naomasa tells All Might the real issue is that Nomu's DNA is of primary concern because it contains multiple Quirks and believes that Nomu couldn't have acquired multiple Quirks in any way (unless Nomu acquired the Quirks through advanced genetic familial permeation) & Naomasa comes to the conclusion that someone with a Quirk that can grant Quirks is behind Nomu's acquisition of multiple Quirks. All Might becomes concerned as he fears that All For One has returned.
All Might being told that Stain the hero killer was defeated Deku
However All Might is soon forced to tell his young successor the news soon when he watches the news revealing that another, more insane, fan of his named Stain nickamed "the Hero Killer" openly plans on killing all heroes who are only in this work for fame & that Izuku has gotten in his way, though after his defeat is published, Gran Torino speaks to All Might on the phone and expresses his annoyance that his pay has been cut in half and his right to teach is revoked for half a year but says that considering the circumstances he does not mind. Gran Torino tells All Might that Izuku has improved drastically in using One For All, saying that Izuku movements are similar to his own; All Might apologizes profusely and thanks Gran Torino for his help, admitting that his teaching towards Izuku has been inadequate. Gran Torino says that he only became qualified as a teacher so that he could keep his promise to Nana Shimura, All Might's predecessor, but All Might thanks Gran Torino for everything as he wouldn't be the man he is today without him.
However Gran Torino warns him that if Stain's backstory is revealed to the public through the use of media, villainy will rise up and the League of Villains will take credit as a group following Stain's ideology due to the connection between them, which will cause more delinquents to join the League of Villains, which also increases his fears of All For One returning. All Might is in disbelief that All For One had survived, not wanting to believe it given the serious injuries All Might inflicted on him but Gran Torino advises All Might to reveal to Izuku everything about himself and One For All when the opportunity arises, which is something he sadly decides to do.
All Might glad with Deku's improvements.
When Deku and the rest of his homeroom class return from their internship once the week comes to an end, All Might teaches their next lesson which will be a Rescue Training Race through Playing Ground Gamma (a construction site with many densely packed lanes which makes it look like a labyrinth). The class must race through the construction site and to the area in the middle to meet up with All Might. Class 1-A will split into four groups of five for the training lesson. Izuku, along with Mashirao Ojiro, Tenya Ida, Mina Ashido, and Hanta Sero are the first group that will partake in the rescue training race. All Might watches the race and is surprised and amazed at Izuku's new control of his Quirk and his movements, although he stumbles and ends up last while Hanta wins the race, All Might says he's impressed with his improvement and gives him a thumbs up, but he also tells Izuku that after the lesson is finished, he should come to his place because he wants to talk to Izuku about the story of him and One For All.
All Might preparing to tell Deku OFA's origin.
That afternoon in the break room, All Might tells Izuku to lock the door and then apologizes to Izuku for not being at his side during the Hosu incident, to which Izuku replies that he does not have to apologize. All Might says that Izuku's blood was ingested by the Hero Killer, reminding Izuku about One For All transfer and inheritance method, causing Izuku to panic, thinking that One For All is in Stain's possession, but he reassures him that it can only be transferred willingly, All Might then tells Izuku that One For All is a special Quirk and begins telling Izuku One For All's origin:
All Might finishing the story by telling Deku his first win against All for One.
Long ago during the Quirk phenomenon's beginnings, society had not adapted to the idea of having superpowers which caused an age of upheaval to arise, but a man possessing a Quirk called All For One; a Quirk that can steal Quirks and grant them to others if the user wanted, stole many Quirks and used his new overwhelming power and influence to gather and unify people under his command, he used the people he gathered as pawns for his plans which allowed to take over Japan and made himself its evil ruler. When Deku asks how this man is related to One For All, All Might tells him that the guy had a younger brother who didn't want to join his brother in his world domination plans & was locked away until he complied, growing extremely skinny in the process, that is until one day, AFO tried to make him by forcibly giving his brother a Quirk that stockpiles power, little did he know was tha hist brother already had a Quirk, a Quirk that can transfer itself to others (which was deemed useless), this resulted in both his quirks merging together and One for All came to be. This makes an astonished Izuku remark that it's impossible for the man who ruled Japan in the distant past to be alive. All Might theorizes that the man stole a Quirk that stopped his aging or a Quirk that granted him immortality. All Might explains that the younger brother, whose Quirks became One For All, fought against his older evil brother but could not defeat him, leading him to pass on One For All to the next generation so that one day it will accumulate enough power to defeat the older brother's All For One; All Might says that he was finally the successor that defeated the older brother, or so he thought. All Might tells Izuku that the man possessing All For One has returned and is leading the League of Villains. All Might finishes his story by saying that One For All is a power that is meant to stop All For One and that Izuku will also have to confront the man.
All Might apologizes for giving Izuku so much information, but Izuku says that whatever task All Might gives him he will accomplish no matter what as long as All Might is by his side. However as he leaves, All Might is unable to bring himself to tell Izuku that their will be a possibility he could be afraid might happen: by the time he does face All for One, he might not be their by his side when the time comes... nevertheless he thanks him for his understanding and they both head off to sleep.
Final Exams Arc[]
All Might revealing to Deku he'll have to face him to pass his final exam... with Bakugo
Following his explanation of OFA's origin a few weeks later, U.A.'s first term final exams come around the corner and to Deku's shock, even though he will be going last... he learns that in order to pass: he'll have to get past All Might to do it... as well as having to work together with Bakugo, something the number 1 hero all but confirms to both of them.