Yagi Toshinori

**Yagi Toshinori** (八木俊典), also known as **All Might** (オールマイト), is a retired hero who now teaches Hero Ethics and Foundational Hero Studies at U.A. High School. All Might is the former No. 1 Hero who bore the title of the world's **Symbol of Peace** (平和の象徴 *Heiwa no Shōchō*).

All Might was the eighth holder of One For All after receiving it from Shimura Nana. He has since passed the torch to Midoriya Izuku, his successor. After using up all the embers of One For All to defeat All For One, All Might retired and ended his era as the world's greatest hero.

## Appearance

In his hero form, Toshinori is a tall, very large man with massive muscles and a well-defined physique. He has short blond hair with two distinct tufts that stick up above his head and often cast a dark shadow over face except for his bright blue eyes.

Toshinori's Golden Age hero costume consisted of a skin-tight blue bodysuit decorated with a red symbol that somewhat resembles a "Y," designed with a white diamond at its center, with white lines connected to it that trace from his chest to his back shoulders, the lines trimmed with the aforementioned red symbol. The symbol appeared to have wings on the side that ran from the atop his torso before ending around his back, over which was a similar red and white design absent of the white diamond. Large white patches lined with red covered each side of his hips before ending at his lower thighs, and he wore a gold belt that had a silver buckle with red eyes. His forearm sleeves were colored in gold that each had white lines covered in blue accents over his wrists, and had spiked fins on the sides of his arms, his feet were covered in shin-length gold boots trimmed with white and red accents.

In his "true form," after sustaining permanent damage from All For One, Toshinori's declining health reduced him to a very skinny man with sharp, angular features and long limbs, his neck long and his eyebrows absent. He possesses a large scar that covers most of the left side of his chest, and it is not uncommon for him to spout blood from his mouth when excited or surprised. He typically wears baggy clothing to accommodate the change in body mass between forms, but after the end of Toshinori's tenure as a hero, he starts wearing clothes that fit him in his true form, as he no longer needs big clothes that fit his muscle form.

In his early career, Toshinori was a lean but fit young man. In his empowered form, his facial features were noticeably softer. In both his normal and empowered form, he did not have shadowed eyes on his face, completely showing his white sclerae while retaining the deep blue irises of his eyes, possibly showing how he was not a shell of his former self.

## Background

Toshinori was born quirkless during a time in the world where evil ran rampant due to the influence of All For One. Crime rates were on the rise because citizens had no hero to believe in.

His mother was an American expat living in Japan until her divorce from his father when he was nine years old, leaving him and his siblings to live with their struggling father.

During his teenage years, Toshinori met Nana Shimura who was like a mother figure to him. He told Nana that he wanted to create a world where everyone can smile and live happily together. For that to happen, the world needed a "Symbol of Peace" to inspire a new age of harmony. Toshinori believed he could become the pillar that inspires people everywhere.

Nana passed One For All down to Toshinori, making him the eighth torchbearer of the great power. With that incredible power comes the danger of facing All For One. Eventually, All For One tracked them down and attacked. Nana sacrificed herself so that Toshinori could live on. As an 18 year old, he could only watch as his master gave her life against All For One.

As a promise to his close friend Nana, Gran Torino trained Toshinori in her place. Toshinori's body was strong enough to utilize One For All at 100% from the start of training. Gran Torino mainly focused on teaching Toshinori how to properly fight. He was also a student at U.A. High School, where Gran Torino served as his homeroom teacher. However, Toshinori was distraught after the death of his master and was unable to train to his potential.

Thoughts of revenge plagued Toshinori's mind and he wished to avenge Nana, who he saw as a true hero. Gran Torino ordered Toshinori to train in the United States after he graduated so All For One could not reach him. He reminded Toshinori why Nana sacrificed herself and restored his resolve. That spring, Toshinori graduated from U.A. and prepared to cross the ocean. Before he departed, 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 All Might.

Soon after moving to Los Angeles, California, Toshinori rescued a group of scientists from an explosion. One of these upcoming student scientists was David Shield. David thanked Toshinori and noticed his destroyed attire. 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 L.A. 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. During this time, he met Melissa Shield, David's daughter, who was born quirkless. Overtime, All Might would serve as an uncle figure to Melissa. He encouraged her to become a support engineer in order to help other people, just like her father.

Eventually Toshinori returns to his home country and his meteoric rise would only continue through the Bronze, Silver, and Golden ages of his career. Eventually becoming the world's Symbol of Peace and No. 1 Hero. All Might reached the pinnacle dreams and inspired a new age of Pro Heroes where the country finally knew peace. Japan's crime rate dropped down to below 6% because of All Might's presence, issuing in an era of peace. However, the looming threat of All For One was still present.

All Might took on a new partner, a fan with the ability to see the future named Sir Nighteye, who he would one day marry along with Midoriya Inko. Sir Nighteye would act as the brains of All Might's operations while the No. 1 Hero was operating at the peak of his career. For many years their partnership worked well. Eventually, destiny caught up with him and All Might was brought face to face once again with All For One.

The Symbol of Peace became the first torchbearer to defeat All For One, completely crushing his head. This was at the cost of critical injuries, as All Might's stomach was lost and his respiratory damaged beyond repair. This created a limit on how long All Might could use One For All, reducing his ability to be the Symbol of Peace.

Due his injures and condition, Sir Nighteye pleaded with All Might to retire, as he doesn't want All Might to push himself to the brink of death, but he refused. Nezu agreed with Sir Nighteye and told All Might that he can look for a successor to One For All in the U.A. High School, 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 incase any new villains stepped up.

All Might asked who the Symbol of Peace will be until he finds that successor. Even though All For One was gone, another villain like him will eventually appear. Sir Nighteye threatened to stop helping should All Might continue his reign as the No. 1 Hero. He even uses his Foresight Quirk to warn All Might of his impending death. He told him that in six to seven years, he will confront a villain and head towards a gruesome death. All Might ignored Nighteye's warning and they dissolved their professional partnership completely.

In order to raise a proper successor, All Might enlisted himself as a teacher at U.A. High five years later. He spoke with Nezu about a potential replacement, and the principal believed that Mirio Togata, one of U.A.'s students, would make a fitting successor to One For All.

During the period between when he defeated All For One until he becomes a professor at the U.A., Toshinori was 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 Naruhata streets a drug known as Trigger, an illegal substance that boosts Quirk but turns its consumers in violent Instant Villains, causing several incidents.

One day, one of the Factory's agents, Kuin Hachisuka, uses her Queen Bee Quirk to inject the drug into innocent civilians, turning them into a horde of Instant Villains, causing chaos at the streets. Suddenly, All Might and several other Heroes such as Air Jet, Ingenium, Endeavor, Midnight, Eraser Head, and several others, appear and in a short space of time, they suppress all the Instant Villains.

Due to the villain outbreak, where several innocent people were turned into Instant Villains, detective Tanema 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, Tanema send his partner Naomasa 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, Toshinori Yagi.

At the top floor, the receptionist tells Naomasa that All Might 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 by All Might himself.

Naomasa couldn't talk to All Might but goes 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 are 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 All Might, 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 Tanema's plan to push All Might's ordeal onto him from the start.

After this, Toshinori and Naomasa become friends, and for the next 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 a villain related to the Villain Factory.

Although he tries to not give importance, 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 use 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 Yagi Toshinori. Upon hearing Naomasa's call, Yagi 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, Yagi hears an explosion on the phone. Seeing how his creatures were being defeated, Number 6 had ordered the last one to self-destroy 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.

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 Yagi Toshinori, 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 Yagi tells him that it’s fine and that it was his impassioned plea that got him there in time. Yagi 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 the 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, Fatgum and Monika, and Naomasa introduces them to Yagi, 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 Yagi to transform back into All Might, destroying the entire swarm with his Nebraska Smash, saving thousands of lives again.

## Personality

All Might carefully creates a hero persona that even after his retirement he attempts to uphold except for a very small inner circle, primarily consisting of close personal friends and family and certain medical staff. This persona follows along comic book superhero stereotypes: colorful and filled with dramatic flair. He has a bright, borderline obnoxious, can-do attitude that is inspiring to many and always has a massive smile on his face. He is optimistic to a fault and is capable of making others feel safe and hopeful. He is incredibly friendly and amicable and takes time to interact with fans. Those he's around a lot often mention his strategic ability as well as a sort of childish exuberance and silliness that can make others underestimate even him, especially enemies.

Outside of this persona, however, he becomes much less energetic and more serious and sober, and prefers to stick to the shadows. He is deeply aware of his continuously degrading health and fragility, as well as the massive legacy he must uphold to keep the public from panicking. Despite all he's accomplished, he often grapples with a sense of not being enough and impostor syndrome, made stronger by his now-quirkless state and his lack of formal education in teaching.

All Might is a natural student who picks things up very easily, and as a result, he has struggled greatly transitioning his ability to a teaching or mentoring position.

He is incredibly determined and single minded when fixed on a goal. Since he was young, he has carried a single goal: to become a pillar of hope that others could rely upon in harsh times. He regularly plays dumb despite his intelligence and perceptiveness and feels uncomfortable when others can perceive his full ability. Toshinori prioritizes the lives of others above his own, considering them to be his responsibility. Though he is aware he cannot save everyone, he does his best to minimize causalities and prevent them from occurring at all.

He has a very long fuse and it's very rare to see him not smiling, laughing, or being cheerful or at least optimistic, but he is incredibly protective of his students, easily becoming enraged if they are put in true danger. He has a fatherly attitude towards his students, especially his successor-cum-adoptive son Midoriya Izuku, and takes pride in helping them develop. He's not afraid of pushing them further, even if he ends up going a bit too far. He also has a habit of adding 'young' to the surnames of his students (for example, Young Midoriya).

Underneath his boundless optimism and cheer, All Might has a brutally pragmatic and ruthless side to him. He is capable of intense intimidation and making hard choices. During the Final Exams Arc, he was more than willing to force Bakugou Katsuki to lose when the latter declared his unwillingness to work with Midoriya Izuku. He also punched Katsuki hard enough for him to vomit, showing he will not hold back and is willing to injure his student if that means they'll pass the exams properly. He was willing to break the bones of Bakugou as well as crush them under his boot (all of which earned him a serious scolding by Recovery Girl).

Regardless of persona, however, he always maintains his optimism...and his oafishness.

## Abilities

**Overall Abilities:** All Might was recognized as the strongest hero in the world. He was the "Symbol of Peace" and such a deterrent against crime that villains were largely discouraged by his presence in society. He was able to defeat All For One, a dangerous super-villain who once ruled all of Japan, and is revered as Japan’s most powerful villain, twice; he was the only user of One For All who was able to win against him. Despite winning, All Might suffered a gruesome injury at the hands of All For One that limited his maximum power output going forward.

Even after his quirk's power was constrained by his injuries, All Might's strength and speed were unmatched though he was only able to manifest it for a limited time period. This time limit got shorter and shorter after he passed his quirk onto Izuku. Even so, All Might could still defeat villains on his own that groups of normal Pro-Heroes struggled against. By pushing his power beyond its reasonable limits, All Might defeated Nomu, who was created specifically to kill him, with over 300 blows. Izuku and Bakugou Katsuki, who are among their class's elites, were completely dominated by All Might in their fight. All Might wore high-density weights during this battle and was still more than strong and fast enough to effortlessly overpower his two young proteges. Forced to once again break the limiter placed on his quirk, All Might defeated All For One by using up his remaining power.

Even though he is unable to keep his hero form for more than an instant after his final battle with All For One, All Might still keeps a keen intuition and sharp reflexes, which helped him hone his skills as a hero ever since he acquired his powers. This is shown in his observations regarding Izuku's use of One For All, and the fact that he was capable of catching one of Hatsume Mei's "babies" coming in from behind with minimal effort in his true form. Despite his physique in his true form, he is actually quite physically able, but isn't as efficient compared to when he is in his hero form.

He is the only known hero rated at all S or S+ statistics in the official hero records and the only known hero rated SSS+.

**Trained Muscles**: Usage of One For All requires the user to have strong muscles, as One For All is a lot to handle and could cause the user's body to be blown apart if they don't possess the necessary strength of body. Gran Torino said that All Might, in particular, had a strong body that allowed him to master One For All much faster than most users.

**Indomitable Spirit**: All Might's will is clear in almost all of his actions as a hero. He is known for saving people with a smile and his catchphrase "I am here", two facets of him being the Symbol of Peace. During the pinnacle of his battle against the U.S.J. Nomu, All Might remembered his resolve of being being the Symbol of Peace, and his resolution allowed him to push beyond 100% of his power in order to finally defeat the artificial human. Another prominent spectacle featuring All Might's willpower was during his final showdown with All For One. One of All For One's primary strategies in their fight was to wear down All Might psychologically, such as taunting All Might by mentioning the latter's former mentor and predecessor, Nana, as well as revealing that Shigaraki Tomura is her grandson. The first taunt enraged All Might, while Tomura's kinship to Nana made him despair greatly. However, in spite of the guerrilla warfare employed by All For One, All Might remembered Nana's teachings on heroism, and re-established his will, enabling the weakened hero to muster up some of his remaining power in order to continue fighting. Worn out of his muscle form and faced with certain defeat at the hands of a virtually unscathed All For One, All Might was still able to channel what was left of One For All to defeat All For One in a single strike.

### Former Quirk

**One For All** (ワン・フォー・オール ): Transferred to him from Shimura Nana, Toshinori's quirk allowed him to stockpile an enormous amount of raw power, allowing him to significantly enhance all of his physical abilities to a superhuman level. This results in unbelievable levels of strength, speed, agility, and durability.

All Might was so proficient with One For All that he was widely known as the world's most powerful person. However, most of the feats below are after All Might had started the process of transferring One For All to Izuku, so what is shown below doesn't actually display the fullest extent of his abilities.

* **Immense Strength**: All Might's most distinguishable trait was his boundless levels of super strength. A single punch from All Might could not only defeat a villain but completely change the weather subsequently. It also has the power to completely destroy several city blocks from the wind pressure it creates. Despite becoming severely weakened since first meeting Izuku, All Might's pure overwhelming strength is still comparable to that of a nuclear device. He quite literally beat the Shock Absorption out of Nomu, forced Deku and Bakugo to flee rather than continue fighting him head-on, and clashed with All For One's attacks and cancel out their highly destructive power with brute strength alone. After defeating Nomu, All Might himself admitted that, compared to his prime in which he could've defeated Nomu with 5 hits, it took over 300 blows to defeat the bio-engineered creature. This is another testament of All Might's weakened state.
* **Immense Speed**: In conjunction with his immense level of physical strength, All Might possesses an equally impressive amount of speed. When he arrived at the U.S.J, All Might moved a remarkable distance from the gate and simultaneously incapacitated villains in the blink of an eye. Tomura even says that he was completely unable to track his movements despite the latter being slower than he once was. All Might was also able to travel 5 kilometers from the League of Villains Bar, towards All For One's location at the Nomu Factory 30 seconds after the Nomu were sent by All for One. However, according to All For One, this was actually much slower than what All Might was able to accomplish in his prime.
* **Immense Durability**: All Might had extreme durability, almost to the point of being completely invulnerable to attacks. He sustained no life-threatening damage from his battle with Nomu and took point blank, unrestrained explosions from Katsuki without so much as slowing down at all. All Might was even able to survive All For One's blast wave attack, a move that can cause city-wide catastrophic damage, and emerged unharmed with only some minor scratches.
* **Immense Stamina**: In his prime years, it was noticed that All Might has never been shown to be tired even when fighting against multiple villains. The only time that All Might was shown to be panting and out of breath was against All For One and Nomu, and that was only due to the injury he got from the former 6 years prior that also limited All Might from using the maximum output of One For All.

## Quotes

* *"It's fine now. Why? Because I am here!"*
* *"I smile to show the pressure of heroes and to trick the fear inside of me."*
* *"I cannot simply say 'you can become a hero even without power."*
* *"I really am pathetic. Even though I admonished you, I wasn't putting what I said into practice! Pros are always risking their lives!"*
* *"You can become a hero!"*
* *"You're next."*
* *"This does not change who you are. You are Midoriya Izuku, son of Inko. You're a strong boy who forged his own destiny and his own strength. You're a boy, almost a man, who changed his fate. Who your father is by blood? Changes nothing. He wasn't there. He has not place in your success or failures. Our fathers do not define us."*

## Trivia

* He has 3 hamsters (Peanut, Jelly, and Butter)
* He likes movies and the color red and the cedars from Yakushima
* He is a Gemini
* All Might's phone is red. His catchphrase "I am here" is also his ringtone
* All Might's hero agency is located somewhere in Roppongi in Minato, Tokyo.
* All Might's signature moves are named after states and cities in the United States, with his ultimate move being called United States of Smash.