(Deku) Izuku Midoriya

Although originally born without a Quirk, he managed to catch the attention of the legendary hero All Might and has since become his close student, as well as a student of Class 1-A at UA Academy. All Might transferred his Quirk to Izuku, making him the ninth and final user of One For All. His hero name is "Deku" No one knows that Izuku has One For All so he lies saying that his power is an enhancer

Izuku Midoriya is a 17-year-old teenager of average height. He has freckles and messy hair. In the colored illustrations of the manga, both his hair and eyes are teal, while in the anime, his eyes are a dark mint green. He is thin, but his body is toned thanks to the training he underwent under All Might.

As for her clothing, she usually wears a black jacket with yellow buttons, accompanied by black pants and oversized red shoes with black laces tied in a bow and white soles.

Alpha Suit Midoriya's first hero costume is a relatively tight-fitting, light turquoise bodysuit with white accents. It includes a belt, his signature red shoes, black elbow and knee pads, and white gloves. On his head, though not always worn, the costume has two eyeholes and two long ear-shaped protrusions resembling All Might's haircut. Around his neck is a mask made of a dark, see-through, fishnet-like material with a large smile drawn across the bottom.

Beta Suit After his suit was restored from the damage sustained in the fight against Bakugo, it changed to a dark teal color, almost matching the color of his hair. The white details became black, and the gloves changed from white to an off-white shade, now with two blue stripes at the ends. The original skate-style knee pads were replaced with ones that cover from the thighs to just above the ankle. The old smiley-shaped mask was replaced with a completely metallic one, more pointed, with breathing holes, but still retaining the appearance of a smile.

During the USJ Showdown arc, while his suit is being repaired, Izuku wears his gym clothes: a blue tracksuit with thick white lines on his upper body and legs, forming the letters "UA".

After his fight against Shoto Todoroki, Izuku earned scars on his hand. Later, during the School Trip, after using the 1,000,000% Delaware Detroit Smash attack against Muscular, he suffered severe damage to his entire right arm.

Gamma and Delta Suit In the Provisional Hero License Exam arc, Izuku seeks out Mei Hatsume to upgrade his suit. Realizing that it can make better use of his legs, he asks Mei to make some adjustments, adding soles.

Izuku is a polite and calm young man. In addition to this, when he was younger he used to be very shy due to being constantly bullied since childhood for being born without a Quirk, especially in front of Katsuki Bakugo. Initially, he is shown as an insecure, reserved, and inexpressive person. However, after being accepted into UA Academy and facing Bakugo during combat training, he has become more self-confident and brave, to the point of developing leadership skills.

Midoriya is also very diligent and strong-willed. Since he greatly admires heroes and has always dreamed of being one since he was a child, he has the habit of writing down everything he knows about heroes in his notebook, including other UA students.

Due to this practice, Izuku has developed a highly analytical mind and is easily able to formulate complex plans in very short amounts of time, often leveraging his allies' Quirks to put them into motion. This aspect also helps him find ways to counter the Quirks used by his opponents. Izuku also tends to overthink anything that catches his attention, leading to endless muttering on his part (which tends to annoy those around him quite a bit).

Izuku is a very humanitarian person, and will never hesitate to rescue someone in danger, even if he knows that he is not strong enough to do so. Often, he does this on a whim, taking a generally more careless approach. Izuku has also been shown to be generous enough to try and help people with personal and emotional problems, even if they do not concern him, claiming that a hero is someone who meddles in other people's lives. Izuku's heroic spirit is acknowledged by many, having gained the loyalty and gratitude of characters who were previously antagonistic to him such as Tenya Iida, Shoto Todoroki, Kota Izumi, etc.

Of all the heroes, the "Symbol of Peace" All Might is the one who has had the biggest impact on Izuku's life, with the number one hero having shaped most of Izuku's goals and beliefs since childhood. Many of Izuku's decisions and actions are inspired by his desire to become a hero similar to All Might, and thus he has a great devotion to him, to the point of collecting several figurines and posters related to the hero and emulating several of his traits.

Having inherited his Quirk, one of Izuku's current priorities is to live up to his idol's legacy, as he is always looking for ways to improve his use of One For All, aware of the immense pressure that is happening to the greatest hero of all time.

Izuku seems to have a more brash and fiery side to him that mostly appears when he's in combat. This side of him makes him act more like Katsuki, being quite strong and unbreakable, and also possessing a strong drive to win. He has even gone so far as to mock Katsuki when the two of them fought when he is in this mindset. He claims that this is because he sees Katsuki as the embodiment of what someone who strives for victory should be. He has also admitted that he doesn't like this side of him very much, and tends to keep it at bay.

Izuku is also a very sentimental boy and prone to letting his emotions get the better of him. This is why he has often allowed himself to be provoked. When Hitoshi Shinso insulted Ojiro, Izuku allowed himself to be provoked and reacted immediately, falling under the power of his Quirk despite having been previously warned not to. When he does react, he tends to take a reckless and imprudent attitude, without considering the consequences of his actions, which almost always end up harming his body, leaving him severely injured.

After all the events of the Paranormal Liberation War, Izuku decides to stay away from his friends and loved ones so as not to endanger them and to prevent Tomura Shigaraki and All For One from attacking them. He shows a radical change in his personality, becoming a more mature and serious person.

Izuku also possesses a very empathetic side and has developed a desire to understand the villains he's faced and potentially save them from themselves, even when people around him tell him it's unrealistic. He initially believed Tomura to be nothing more than a madman who wishes to hurt others senselessly, however, after learning about his tragic backstory and feeling his pain in his heart through the connection of One For All with All For One, this reinvigorates his belief that a hero saves people's lives and not kills them. It is because of this that he wishes to know how they became villains in order to prevent possible conflicts.

After the trauma of war, seeing countless innocent people's lives ruined by society, having All For One hunt him down for his gift, and having the burden of protecting others, Izuku slowly grows colder and more distant. The overwhelming burden and stress he feels on his shoulders causes him to run straight into battle, leaving All Might and the rest of the Heroes behind so they don't get hurt. This, increased by his seriousness, makes many civilians realize that he doesn't see himself as a hero.

Leadership Skills: As a result of his great determination, effort and hard work, Izuku has developed over time skills worthy of a leader and role model. Izuku does not seem to realize this, but thanks to his work his classmates have begun to feel inspired and motivated by his actions, causing them all to constantly surpass their limits.

One For All (ワン・フォー・オール, Wan Fō Ōru?): Inherited from Toshinori Yagi, Izuku's Quirk gives him access to the stored power of previous successors, granting him superhuman strength, vastly enhanced agility, and mobility by spreading its power throughout his body. Though he has yet to demonstrate superhuman speed, immense reflexes, and durability on All Might's level, Izuku has shown capable of properly controlling a small percentage of One For All's power, using it to enhance his strength, speed, and agility. Should Izuku not spread One For All throughout his body evenly, his body can be immensely damaged by the force of his movements. Izuku has also displayed a type of mental connection with previous One For All users.

Black Whip (黒鞭クロムチ Kuro Muchi ?): The Quirk of the fifth user, Daigoro Banjo. This Quirk allows its user to generate a kind of dark ropes from any part of his body, which adhere to objects and surfaces and can be manipulated in any way. It is very useful for grabbing objects from long distances and also improves Izuku's mobility. Detroit Smash (デトロイトスマッシュ Detoroito Sumasshu ?): It is the same super move used by All Might, except Izuku does it in the form of an uppercut. Delaware Smash (デラウェアスマッシュ Derawea Sumasshu ?): Izuku tenses one of his fingers with his thumb and then releases it to create a powerful shockwave. Doing so fractures said finger, limiting the amount of times he can use this move to 10%.

One For All: Full Cowl (ワン・フォー・オール フルカウル Wan Fō Ōru Furu Kauru ?): This technique allows Izuku to activate 5% of One For All throughout his body, letting all of its strength be distributed throughout him instead of concentrating it in a single point. Activating this technique gives him enhanced strength, speed, mobility, and agility. It also prevents him from breaking his bones when attacking. 5% Detroit Smash (5 パーセント デトロイトスマッシュ 5 Pāsento Detoroito Sumasshu ?): It is a blow equal to the Detroit Smash but with only 5% of the power of One For All. Double Detroit Smash (ダブルデトロイトスマッシュ Daburu Detoroito Sumasshu ?): Izuku and All Might combine their Detroit Smashes into a single devastating charge.[3] Delaware Smash Air Force (デラウェアスマッシュエアフォース Derawea Sumasshu Eafōsu ?): Deku, while training with All Might, discovers that he can now release pressurized air[4] (using new gloves created by Mei that allow him to retain some damage); he creates this technique by using his fingers and launching pressurized airs that do not damage his fingers. It is an improved version of the Delaware Smash correctly using his current power percentage.

One For All - 100%: A technique that allows Izuku to attack using the full power of One For All on the desired part of his body, at the cost of said body part breaking upon execution. Further use of the same limb after an initial attack can cause scarring, as seen with his fights against Shoto (causing Izuku to undergo surgery on his right hand due to injuries) and Muscular (leaving multiple scars on his right arm).[6] 100% Detroit Smash (100% デトロイトスマッシュ Hyaku Pāsento Detoroito Sumasshu ?): This move involves Izuku activating One For All at 100% in his arm and then hitting his target with a punch.[7] 1,000,000% Delaware Detroit Smash (1000000% デトロイトデラウェアスマッシュ Hyaku-man Pāsento Derawea Detoroito Sumasshu ?): Izuku surpasses 100% and delivers a powerful blow with impressive force that launches the opponent very far. This movement was powerful enough to surpass the force and defeat the villain Muscular and incapacitate him. It is worth mentioning that it does not use 1,000,000% power, but rather this is a war cry caused by his feelings and adrenaline. Wyoming Smash (ワイオミング スマッシュ Waiomingu Sumasshu): Izuku draws 100% of his power into his arms and proceeds to slam his opponent in the head, creating a powerful shockwave as a result. This super move was first used against Tomura during the Paranormal Liberation War.[8] Texas Smash (テキサススマッシュ Tekisasu Sumasshu ?): Izuku throws a punch to create a wave of pressurized air and send objects and people flying. This move is first used to critically damage Tomura Shigaraki during the Paranormal Liberation War.

One For All: Full Cowl - Shoot Style (ワンフォーオール フルカウル シュートスタイル Wan Fō Ōru Furu Kauru Shūto Sutairu?): When using One For All: Full Cowl, Izuku uses a fighting style that focuses more on his legs and kicks.[10] Izuku concentrates the effects of One for All: Full Cowl on his torso and legs instead of his arms, allowing him to exert even more power due to the fact that human leg muscles are naturally stronger than human arm muscles, granting him sufficient power and stability and allowing him to move away from the shackles of having to imitate All Might. Shoot Style: St. Louis Smash (シュートスタイルセントルイススマッシュ, Shūto Sutairu Sento Ruisu Sumasshu?): While using Shoot Style, Izuku leaps into the air and swings around to deliver a spinning kick to the opponent's face. Izuku used this move to incapacitate Gentle Criminal who had been empowered by La Brava's Quirk to match Izuku's usage of One for All: Full Cowl at 8% of its power.[11] One For All: Full Cowl - 20%: Izuku uses 20% of One For All's full power and distributes it throughout his body, giving him even greater power and speed boosts. While it will not cause his bones to break, it puts a great deal of strain on Izuku's body, causing him great pain to the point where it feels like his bones are about to break.[12] Manchester Smash (マンチェスタースマッシュ Manchesutā Sumasshu ?): Izuku leaps into the air and flips forward to deliver an axe kick to his opponent's head. Though Kai Chisaki managed to evade it, the attack itself pulverized the ground enough that Kai was unable to counterattack with his Quirk.

Long ago, All For One, a man with a Quirk that could steal other Quirks and give them away, gave his younger brother, Yoichi Shigaraki, apparently Quirkless, a Quirk that allowed him to accumulate power within his body. However, unbeknownst to either of them, Yoichi already had a Quirk with no effect other than that he could transfer that Quirk to others. The Transfer Quirk and the Power Accumulation Quirk merged into one and have since become One For All.

After discovering his newly developed power and due to his strong sense of justice, Yoichi attempted to defeat All For One but due to the vast difference in their abilities, he failed. He then decided to entrust the Quirk to future generations of heroes, hoping that they would cultivate One For All and one day put an end to All For One. He passed the power on to the Second User, a resistance leader who had freed him from the prison cell where his brother had been holding him. All For One sought out One For All and as a result, nearly all of the One For All users fought against him and were killed by him, but not before each had the opportunity to pass the Quirk on to a successor who would carry on the legacy and try to defeat the Villain in the future.

The fourth user, Hikage, believed he would not be able to defeat All For One and decided to use his "turn" with One For All to isolate himself and train the Quirk to become as strong as possible. However, after eighteen years, his body unexpectedly began to deteriorate. Though he blamed an unknown illness at the time, in reality, possessing One For All and his original Quirk had drastically shortened his lifespan, forcing him to pass it on shortly before he died. All For One attempted to steal One For All twice, first from the fifth user, Daigoro, and then from the sixth, En, but failed both times. This was apparently because he was unable to muster the rage to overcome the fragments of the wielders' consciousness.

The seventh user, Nana, was the last wielder to be killed by him, while his apprentice and One For All successor, Toshinori, fought All For One twice, emerging victorious in both battles, but suffering significant injuries in the process. Despite his injuries and the pleadings of his friend/henchman, Sir Nighteye, he continued to fight for another six years before choosing a successor. This would bring his total as a One For All wielder to 40 years.

After much debate over choosing a successor, and shortly before he began teaching at UA to help him find one, he encounters Izuku, a Quirkless boy like himself. Impressed by Izuku's desire to become a hero and his selfless spirit for saving lives, he chooses him to become the ninth and current wielder.

While the Quirk was initially perceived as a source of massive power, things began to change as Izuku grew more accustomed to it. Not only did the consciousnesses of the previous wielders take on a more physical form within a realm of vestiges that could communicate with each other and Izuku when previously they were only echoes seen in dreams, but the Quirks of One For All's core predecessors also emerged, allowing Izuku to use them.

This sudden growth led Toshinori to conduct research into the users' pasts in order to find information that would help Izuku. It was here that he discovered the autopsy behind Hikage's death, and while unsure at the time, Toshinori speculated that he had been able to continue using One For All for so long because, unlike most of his predecessors, he did not have a Quirk. Due to this revelation, according to Yoichi, Izuku may be the last user of One For All, as it can only be wielded by someone who originally didn't have a Quirk, and considering that said population has decreased considerably over the generations. The Quirk has been passed down through nine generations, growing stronger over time. Currently, One For All is one of the most powerful Quirks in existence, however, it is very difficult to fully master.

In order to steal One For All, All For One decided he needed someone with extreme malicious intent, powerful enough to overpower the wielder's will and the other consciousnesses within One For All. For that purpose, he groomed Tomura Shigaraki and filled him with hatred. All For One then transplanted his original Quirk into Tomura and took control of the young villain. Using Tomura's will, All For One attempted to steal One For All from Izuku, but was thwarted by Yoichi and Nana. Knowing that Tomura's body was still incomplete, All For One retreated and decided to wait for it to complete.

Very few were informed of the true nature of One For All, fearing what villains would do if they discovered that the world's most powerful Quirk could be transferred, as well as the discourse between other heroes and the general public. Prior to the start of the series, besides the users, All For One and his confidant Kyudai Garaki, the only known people who knew the truth were Nana's partner Gran Torino, Toshinori's partner Sir Nighteye, the staff of UA Academy, Nezu and Recovery Girl, and police detective Naomasa Tsukauchi. After Izuku nearly revealed the secret to Katsuki Bakugo out of guilt, the latter managed to deduce most of the truth, with Toshinori explaining the rest to him.

However, after the Paranormal Liberation War, the name "One For All" was leaked to the public when people heard Endeavor mention it during his fight with Tomura. Initially unaware of what it meant, people were able to deduce that he is related to All For One due to the similar name.

After the war, Best Jeanist and Hawks confronted Toshinori about One For All and how it was related to Izuku being chased by Tomura during the battle, so Toshinori reveals everything to Endeavor, Hawks, and Best Jeanist. Izuku and Toshinori also proceed to reveal the truth to Izuku's mother, Inko, and Izuku himself writes personalized letters to each of his Class 1-A classmates about the secret before leaving UA.

At a press conference, Endeavor, along with Hawks and Best Jeanist, deny knowing anything about One For All in order to protect Toshinori and Izuku.[5] However, the public continued to question the heroes as more information leaked out. While still unaware of its transferable origins, many civilians have been able to deduce that One For All is a special power that Izuku possesses, which is why Tomura is targeting him; this is confirmed to the civilians seeking refuge in UA. Most of the main Heroes now know the truth, as they use this knowledge in their planning ahead of the Final War to defeat the Villains once and for all.

Due to the relationship between One For All and All For One, Izuku takes the lead in directly dealing with Tomura and the vestige of All For One, having trained and mastered the Quirk enough to unlock all of its users' Quirks and use its power to achieve an equivalent of 120% of One For All's power. He has grown so powerful that he helped disrupt All For One's fusion with Tomura, giving him the chance to strike back at his master and achieve full usage of All For One's Quirk. Proclaiming that he has no need for One For All, Tomura's goals differ completely from his master's as he proceeds to confront Izuku in order to destroy him and his Quirk for good, aiming to eliminate the only person capable of stopping his quest for global annihilation.

Ochaco Uraraka: It has been hinted that Ochaco has a crush on Izuku, and there are some scenes that suggest a possible romantic connection between them. However, Izuku has not reciprocated these feelings, and the relationship remains a friendship, albeit with a strong mutual affection. Shoto Todoroki: Although it's not a romantic relationship, there's a strong friendship and admiration between Izuku and Shoto. They've been through difficult times together and have learned to trust each other. Relationships of friendship and support: Katsuki Bakugo: Though they often clash and argue, Izuku and Katsuki share a complex friendship and strong mutual support. They've learned to respect each other's boundaries and support each other in dangerous situations, though their differences in character remain evident. Tenya Iida: Izuku and Tenya have a relationship of friendship and respect. Iida admires Izuku's heroic potential and trusts his judgment and abilities. Inko Midoriya (her mother): Izuku maintains a very close and loving relationship with his mother. Inko supports him unconditionally and encourages him to pursue his dreams of becoming a hero. Other characters: Hisashi Midoriya (his father): Izuku has a distant relationship with his father, who is away most of the time due to work. His father has been portrayed as an absent figure, and not much is known about their relationship. All Might (his mentor): Izuku has a mentor-apprentice relationship with All Might, who guides him and teaches him how to be a hero. All Might is a very important figure in Izuku's life.