|Former Affiliation||104th Trainees Squad|
|Grad Rank||Outside the top 10|
|Manga||To You, 2000 Years From Now|
|Anime||To You, 2000 Years From Now|
|Anime|| Marina Inoue (Japanese)|
Josh Grelle (English)
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Armin Arlert (アルミン・アルレルト Arumin Arureruto?) is a childhood friend of Eren Yeager's and Mikasa Ackerman's and the deuteragonist in the series. Although he is one of the physically weakest of the 104th Trainees Squad, his high intelligence and strategic genius make him an invaluable asset.
AppearanceArmin is rather short for his age with a small build. Armin has a round face, framed by his blond hair, with large, expressive blue-eyes and a pudgy nose.
In his childhood, Armin wore a long-sleeved single-buttoned jacket with a collared shirt, long dress-pants and dress shoes. As a member of the 104th Trainees Squad, Armin wore the standard 104th Trainees Squad uniform. After graduation into the Survey Corps, he wore the standard Survey Corps uniform. Underneath his short brown jacket, he wears a white and collared button up shirt, similar to the one he'd worn as an adolescent. Like his fellow comrades, Armin accompanies his attire with a large green cape when participating in the 57th Expedition outside the Walls.
Growing up, the naturally curious Armin had a deep fascination with the world that was awaited beyond the Walls, and even enthused his best friend, Eren, into sharing this passion. Much of his free time was spent reading any book about the outside world he could find, but he would be branded a heretic for his unusual interest, and was frequently picked on. Too timid to defend himself, Armin would often need to rely on his friends to protect him from local bullies. This, coupled with his frail physique, was a source of much shame for Armin, leading him to have poor self-esteem and believing himself to be a burden upon others. Because of this, Armin was very eager to prove his worth, refusing to accept Reiner's help during training, with his ambition being to one day stand on equal footing as his friends.
Armin is exceptionally loyal and selfless, constantly worrying for the safety of his friends, and ready to throw himself into dangerous situations for them, even offering to sacrifice himself for Mikasa. When he, Jean and Reiner had to decide who would be left behind without a horse, Armin immediately offered himself without hesitation, and when Jean was injured in battle, Armin rushed to his aid, placing himself in danger as well. Armin is also very level-headed, keeping Eren and Mikasa under control when their emotions get the better of them. He has talked down a fight Eren started with a soldier, and restrained Mikasa from acting rashly during Eren's military trial.
Although initially meek and a bit cowardly, Armin acknowledged these weaknesses, letting his potential shine brighter as he gradually gains more confidence in himself.  Relieving himself of doubt, Armin has shown great investment in humanity's future, always striving for and thinking on how he can change things for the betterment of mankind. However, Armin's life has also left him considerably jaded, and he has come to believe pragmatic actions and great sacrifice are necessary for change. Armin admires strong leaders such as Darius Zackly, Ian Dietrich and Dot Pixis for their ability to sacrifice themselves in order to put humanity further. Armin's most consistent traits remain his kind heart and keen intuition, making him often concerned with the group's morality.
Before Year 845
Armin originally lived in the Shiganshina District of Wall Maria with his parents and grandfather. Armin would often spend his time enthusing his closest friend, Eren, about the world beyond the walls, for which Armin held a passionate curiosity for. Reading about salty oceans, deserts and other surreal places, Armin expressed a desire to one day venture out and see these magnificent sights for himself, and also inspired Eren to dream of freedom beyond the safety of the walls. However, Armin's interest in the outside world was met with frequent harassment by local bullies, who regarded him as a heretic.
In the year 845, Armin would once again find himself cornered by bullies who mock young Armin for his curiosity for the outside world. Refusing to fight back, Armin would need to be rescued by the timely appearance of Eren and Mikasa. Later, Armin and his two friends settle by the riverbank, where Eren would brood over his desire to join the Survey Corps. Just as Armin muses how the walls can't protect humanity forever, the Colossal Titan appears for the first time, and subsequently breaches Wall Maria as Armin and the others watch in horror. As Titans flood the town, Eren and Mikasa head back home to find their doomed mother, and Armin tries to stop them, but finds himself petrified by fear. Unbeknownst to Eren and Mikasa, Armin was the one to locate and inform Hannes to fetch the two as they were going too close towards the Titans' direction. Armin makes it aboard an evacuation ship with Eren, Mikasa and his grandfather, and witnesses the Armored Titan's first appearance. One year later, Armin's grandfather was enlisted along with thousands of other refugees in a campaign to retake Wall Maria. However, he died on the mission, and Armin was left alone with Mikasa and Eren.
Armin decides to enlist into military training along with Mikasa and Eren, no longer content with sitting by in the face of the Titan threat. He was able to pass the basic aptitude test after some effort, and tried to help Eren with it when his friend struggled. Armin was considered weak in physical strength, and graduated below the top ten. However, he was top of the class when it came to theoretical courses.Trost. He trembles in fear, realizing how sorely unprepared they are to respond, but Eren manages to shake Armin out of it. Later, Armin joins Eren's squad in the middle guard of Trost and exchanges confident words with Eren about killing Titans, and soon after departs with Mina Carolina, Thomas Wagner, Mylius Zeramuski and Nac Tius to their prescribed location. Along the way, Thomas is caught by surprise and eaten by an abnormal Titan. Enraged and vengeful, Eren charges ahead of the others to engage the Titan, and Armin and the others follow suit. However, the group is ambushed and picked apart by the surrounding Titans, leaving only Armin alive and Eren missing his left leg. Shocked and horrified, Armin is left immobile as a nearby Titan plucks him up and attempts to swallow him. However, Eren, just barely conscious enough to remember how Armin has inspired him to see the outside world, leaps to Armin's aid, just barely saving him from being swallowed. Eren hurls Armin out of the Titan's mouth, but is eaten in his friend's place as Armin screams in anguish.
Stuck in a state of shock for some time, Armin is shoock out of it by Connie who questions where the rest of his squad is. Armin suffers a mental breakdown, despising himself for his cowardice that resulted in Eren's death. Armin leaves to inform the rear guard of what happened, along the way lamenting how the world is and always has been hell. Along the way, Armin encounters Hannah trying to resuscitate Franz. Armin beckons Hannah to stop, seeing all too well that Franz is bisected and already dead.
Armin is later confronted by Mikasa above the rooftops with the other stranded trainees. She questions Eren's location, but as soon as Armin looks at her with tearful eyes, she understands. Armin blurts out the names of all fallen soldiers in Eren's squad, ending with Eren himself. Despite his clear regret, Mikasa calmly comforts Armin and explains that they mustn't get emotional at a time like this. Armin follows as Mikasa guides the leaderless trainees to safety, but realizes how she is only masking her distress. When Mikasa carelessly uses up all of her gas, Armin comes to her aid. Soon after, Armin, along with Mikasa and Connie, witness the appearance of the mysterious Titan who only kills other Titans.
With Mikasa's gas exhausted, Armin provides her with all remaining fuel and blades he has, seemingly ready to remain behind. Armin requests to keep one blade to commit suicide with, but Mikasa and Connie refuse to leave him behind. With Trost's military headquarters overrun with Titans, and the soldiers running low on fuel for their gear, Armin devises a plan to lure the Rogue Titan towards the HQ to wipe out the surrounding Titans. Once inside the HQ, Armin constructs a plan to eliminate the Titans infesting the supply depot inside. While Armin and several other soldiers act as bait, members of the 104th's top 10 would slay the seven Titans without having access to their maneuver gear. Armin's strategy works, and the trainees refuel their gear. Shortly after, Armin would witness Eren mysteriously emerging from the Rogue Titan's nape, unconscious, but alive.
After being recovered, Eren was detained by a group of soldiers and was going to be executed. Armin and Mikasa defend him, as he wakes up surprised and confused. Eren plans to escape over the walls unless Armin was able to convince the soldiers regarding Eren's value to humanity. Eren tells him that his quick thinking had saved him and Mikasa before, as he was the one who went to Hannes when Shinganshina was being attacked. Armin, more confident than ever, walks into the open and tries convincing the soldiers of Eren's strategic and tactical importance in turning the tide of the battle in Trost. As a soldier, he passionately declares to be ready to die for this cause and makes a grand salute. Pixis, noticing his determination and passion, prevents their execution.
Now with a boost in self-confidence, he tells the senior strategists about a plan to retake Trost. He tells them that Eren could carry the boulder over to the hole while other soldiers could lure the Titans towards the walls. They proceed with the plan. Later, when Eren loses control of his Titan form and knocks himself out, Armin rushes to Eren and lands on his back. Remembering the spot where Eren had risen earlier, Armin stabs into him a little askew so that it wouldn't be fatal, but would wake him up. He reminds Eren of his dream to go outside and his personal vendetta against the Titans. Eren, successfully motivated by Armin's effort, carries the boulder and plugs the breach.
After news had spread that two captured Titans, Sonny and Bean, were slain, Armin along with other trainees from the 104th Trainee Squad are called in for inspection. Armin, Annie and Connie discuss which branch of the military they would join, and Armin declares he intends to join the Survey Corps, to the surprise of Connie. Annie compliments Armin on his courage, but states she still wants to join the Military Police and survive.
After joining the Survey Corps with Eren, Mikasa and the rest of the 104th's top 10 (excluding Annie Leonhart), Armin participates in the Survey Corps' 57th expedition, venturing beyond Wall Rose. Not long into the expedition, Armin's squad encounters the Female Titan, which is seemingly highly intelligent and knowledgeable about the military formation. The Female Titan kills Armin's entire squad, but spares Armin's life after carefully unhooding him and observing his face. As the Female Titan moves on, Reiner and Jean meet up with Armin and the three pursue the mysterious Titan. Armin suggests the Female Titan, like Eren, is a shifter and is likely hunting for Eren. The three attempt to engage the Female Titan, and are nearly killed, but manage to stall her, though she immediately beelines for Eren's direction after warding Armin's group off.
Though they survived the encounter, Armin, Jean and Reiner are left stranded with only one horse, which is only strong enough to carry two at a time. After being bandaged up by Reiner, Armin offers himself to be left behind, but luckily, Krista quickly arrives with two spare horses in tow.
Reaching the Forest of Giant Trees, Armin and his fellow soldiers perch on its many high branches, distracting Titans while Erwin confronts the Female Titan. While they wait, Armin concludes that Erwin withheld vital information from most of the soldiers out of fear of traitors existing amongst them. Jean criticizes his commander's actions, but Armin defends Erwin, stating that playing it safe will not bring about change. When the expedition ultimately ends in failure, Armin safely returns to Wall Rose with the remainder of the Survey Corps.
Some time later, in Stohess District, Armin locates and asks Annie, as a Military Police member, for her help in hiding Eren as they need to flee Wall Sina to avoid Eren's inevitable execution. Although initially hesitant, Annie accepts, and Armin explains that they must smuggle Eren out of Wall Sina by foot and will take an underground route. As he, Eren and Mikasa enter the underground, Annie refuses to continue on, realizing that Armin has led her into a trap. Armin confronts Annie, questioning why she was in possession of Marco Bott's 3DMG during gear inspection. Annie claims that she simply found it, but admits to have killed the two captured Titans using her own gear when Armin accuses her of such. Annie questions why Armin did not take action if he was already so suspicious of her, but Armin states he simply could not believe it, and questions why Annie chose to not kill him when she had the chance. Annie isn't sure herself, but congratulates Armin on managing to corner her, confirming her identity as the Female Titan-shifter.
Armin fires a sound grenade, signaling hidden soldiers to restrain Annie. Despite their efforts, Annie succeeds in injuring herself using a barb hidden in her father's ring, allowing her to transform. Anticipating this, Mikasa grabs both Eren and Armin and takes them further underground as Annie in her Titan form attempts to grasp them. Seeing that his strategy has failed, Armin initiates plan B, trying to encourage Eren to fight Annie. Eren tries repeatedly to assume his Titan form, but cannot due to his reluctance to fight Annie. Having no other option, Armin suggests he and Mikasa distract Annie so that Eren may safely flee. Realizing that if he does not fight, his friends will surely die, Eren finally transforms into a Titan and fights Annie.
After a horrendous struggle, Annie is successfully captured, and Armin takes a moment to rest with the others. Armin informs Jean that Eren's summons to the King were cancelled and that Annie is indeed the Female Titan. She's been detained underground after encasing herself in a crystal to avoid interrogation. Reflecting on the mysterious Titans found in the walls, Armin cannot fathom how the walls were built in the first place, but hypothesizes that abilities like Annie's hardening power were somehow employed to construct the walls.
Armin's hypothesis is later confirmed when the rock sample Squad Leader Hange had picked up from Annie's Titan body matched the properties of the Walls. With this information in mind, Armin and Hange propose a way to repair Wall Maria: Eren using his own hardening ability to mend the breach. Pastor Nick informs the group about a girl in the Survey Corps who may know more about the walls, stating that while he cannot share any more details, she can. Armin and the others immediately recognize the girl in question to be Krista Lenz.
Rescuing Krista, Reiner, Bertolt, Connie and a grievously injured Ymir from Castle Utgard, Armin and the Survey Corps regroup on top Wall Rose. However, Armin shortly after learns of Reiner and Bertolt's secret correspondence with Annie, confirming his and Hange's suspicion that the two are also spies. As Reiner and Bertolt attempt to take possession of Eren, they are attacked and nearly killed by Mikasa, but survive. A horrified Armin is present to witness Reiner and Bertolt's Titan transformations, marking the second and third appearance of the Armored and Colossal Titans, respectively.
Armin is called by Hange to aid Eren as he battles Reiner in their Titan forms, meanwhile the Colossal Titan is kept preoccupied defending himself from the rest of the Corps. Advising Eren to retreat to the wall, Armin provides Mikasa with his spare blades to support Eren against the Armored Titan. With their combined strategic geniuses, Armin and Hange advise Mikasa to cripple the unprotected parts of the Armored Titan's knees, allowing Eren to gain the upper hand. However, just as the battle turns in Eren's favor, the Armored Titan lets out a loud wail, signally the Colossal Titan to throw itself off Wall Rose, landing on the two down below.
With Eren and Ymir now kidnapped by Bertolt and Reiner, he focuses his attention in helping Mikasa and the others until help arrives. Armin tells her the news that she had been dreading and wrapping her lower face in the scarf, she cried. She asks him why he always has to leave them behind when trouble rises. As Armin tries to console her, Hannes arrives to give out rations to everyone in the Survey Corps. He tells them that Eren has always been like that, running into fights despite knowing the odds are against him. Hannes even mentions that although he won't admit it, he always knew Armin and Mikasa were there to help him out. Reinvigorated and determined to rescue both Eren and Ymir, he takes his stance with the Survey Corps, Wall Guards and Military Police. Armin wants Historia to stay within the walls, but she refuses and decides to join them.
Armin and the others reach the Forest of Giant Trees where Reiner and Bertolt were resting. While inside the forest on their 3D gears, they notice Ymir's Titan form. Armin suspiciously notices that she was surveying everyone and wasn't responding to anyone. His suspicions were confirmed when she captures Krista and escapes. He realizes that Ymir was definitely working against them.
A short time later, he joins the other former members of the 104th in confronting the traitors. He remains silent during the initial confrontation, and is forced to briefly retreat when Erwin Smith lures a swarm of Titans into attacking the Armored Titan. When his commander is wounded and carried off by a Titan, Armin remains focused on the mission and joins the second attempt to retrieve Eren. Using his gear to climb onto the Armored Titan's head, he desperately attempts to think of what can be "sacrificed" in order to change their situation. Remembering Bertolt's concern when Annie joined another branch alone, Armin informs her accomplices that she has been captured. Taking his bluff a step further, he inquires whether they intend to leave her behind in the Northern District, and cruelly describes how she is being tortured. This has the intended effect, shocking Reiner and driving Bertolt into a rage. This allows Erwin, now missing an arm, to wound Bertolt and free Eren. With their mission accomplished, Armin and the others attempt to retreat as quickly as possible. However, their path is blocked when Reiner panics and begins to throw Titans to prevent their escape.
This horrifies Armin, and he wonders why Reiner would do this when it endangers Eren. At some point during the battle, a Titan lands near him and knocks Jean unconscious. With no where to run, Armin drags Jean towards a small cluster of trees and prepares to face an advancing Titan with only one sword. He looks towards where Eren and Mikasa are, seeing them in just as desperate a situation. The friends exchange teary-eyed glances, preparing for the end.
He is saved when Eren's power as the Coordinate manifests, causing the Titans to attack first the Smiling Titan and then the Armored Titan. This allows Armin to retrieve a horse, and carry a wounded Jean to safety. They retreat from the battlefield, mourning for the loss of Hannes and remembering their childhood with him.
A week later, Armin would be recruited by Levi to form a new Special Operations Squad alongside the remaining members of the 104th's top 10 trainees. During their first official operation, Armin serves as a body double for Historia, and is eventually captured by the organization that wishes to take possession of Eren and Historia.
Being one of the physically weakest soldiers there are, he is rarely assigned to the frontlines and rarely seen using his 3DMG for fights. His main strength however, lies within his intelligence - an innate abilities in deduction and forming strategies, be it in a war room or on the fly, as well as an eye for obscure details, making him a remarkable field tactician, a trait that only he displays among the current recruits. His strategies helped save his fellow soldiers numerous times and more remarkably, he is the key person who deduced the identities of all hostile Titan shifters among the current recruits. He wasn't able to display his remarkable intelligence earlier due to a serious lack of confidence in himself. After acknowledging that he is actually far more useful than he thought he is, his genius as a tactician began to show and thus far, even commanders are shown to take his opinions in matters relating to Titans seriously.
- Eren Yeager - Eren is Armin's closest friend. Armin has always looked up to Eren as he was always trying to save him from local bullies. He used to discuss with Eren about the outside world and gave him dreams about exploration and freedom. Armin initially felt that he was worthless and incompetent in front of him. Eren, on the other hand, believed that his reasoning abilities had saved him and Mikasa a number of times and trusted him deeply. Eren gave him enough confidence to face a group of soldiers to convince them of his strategical value to humankind.
- Mikasa Ackerman - Mikasa is a close friend of Armin's. Whenever Armin got into trouble with local bullies, Mikasa would come and save him. Armin looked up to Mikasa's strength and courage and felt inferior to her. Mikasa, however, believed in Armin's abilities to reason out the best solution in a dire situation and trusted him deeply. She was responsible for boosting Armin's confidence and shaping his character.
- Jean Kirstein - While Armin was initially not that close to Jean due to the latter's rivalry with Eren, their relationship has changed considerably since joining the Survey Corps. Armin's growth as a strategist has aligned with Jean's growth as a leader, and the two often share insights or opinions with one another.
- Annie Leonhart - The two are shown to share a mutual respect for each other, expressing admiration for each others' hidden qualities. This causes her to hesitate when attacking in her Titan form, a mistake which allows Armin to discover her true identity. He then uses emotional blackmail in order to lure her into a trap and facilitates her eventual capture.
- Reiner Braun - Reiner is shown to have been protective of Armin, helping him during physical training exercises and carrying him to safety during dangerous operations. Armin initially defends him when he is suspected of being a spy, but quickly realizes the truth and provides evidence of Reiner's guilt.
- Marco Bott - Armin notes that they were friends, and did maintenance of their gear together. This later allows him to recognize Marco's stolen gear when it is presented by Annie as her own.
- The name "Armin" may have multiple meanings, either from an old German word meaning "whole", or "Herman", meaning "soldier".
- His birthday, November 3rd, is celebrated in Japan as Culture Day. This holiday promotes academics, culture, and the fine arts.
- In sideart for Volume 11, Armin, along with a few other characters, was depicted transforming into a Titan. His form had a large head that was almost the same size as his small body. This was also included in the second OVA.
- Hajime Isayama joked in the November 2014 issue of Bessatsu Shōnen Magazine that the girl Mikasa got along with most was Armin. After much confusion, he later corrected himself and stated that Armin is indeed male.
|104th Trainees Squad|
|Squad Leaders||Hange Zoë · Mike Zacharius|
|Team Leaders||Dita Ness · Darius Baer-Varbrun|
|Special Operations Squad|| Eld Jinn · Petra Ral · Oluo Bozado · Gunther Schultz|
Eren Yeager · Historia Reiss · Mikasa Ackerman · Armin Arlert · Jean Kirstein · Connie Springer · Sasha Blouse
|Squad Members||Braun · Dieter · Gelgar · Henning · Ilse Langnar · Jurgen · Keiji · Lauda · Luke Siss · Lynne · Moblit Berner · Nanaba · Nifa · Pere · Thomas|
|Former Members||Bertolt Hoover · Keith Shadis · Reiner Braun · Ymir|
|Before the Fall members||Carlo Pikale · Sorum Humé · Kuklo|