`≈. Eren Yeager ≈`

It is the one that Eren, Mikasa, and Armin use most of the time during their training.
Main parts
Short jacket in light brown or beige.
White shirt underneath.
Light brown trousers.
Dark belt at the waist.
tall brown leather boots.
Cadet Corps emblem on the arm.
The uniform is designed to allow for quick movements and intense physical training.
Uniform with three-dimensional maneuvering equipment
When they practice fighting titans, they add:
Harness of leather straps around legs and waist.
Metal boxes on both sides of the hips.
Replaceable swords.
Triggers in the grips.
Gas tanks to power the movement.
The straps cross a large part of the body, making the uniform look much more complex and military.

Titans are giant humanoid creatures that devour people. Most don't think or speak; they act on instinct. They are humanity's greatest fear within the walls.
What are titans like?
They have a deformed human appearance.
Their sizes range from small to enormous giants.
Many smile strangely even while attacking.
They don't need to eat to live; yet they devour humans.
They regenerate quickly if they are injured.
Weak point
The only sure way to kill them is by cutting the back of the neck.
Types of Titans (Summary)
Pure Titans
They are the most common. They walk around without thinking and attack people automatically.
Shifting Titans
They are humans capable of transforming into titans while retaining their intelligence.
These possess special abilities and are much more dangerous.
Special Titans
Some have unique characteristics:
enormous size,
armor,
speed,
combat skills,
etc
Important Titans at the beginning of history
Colossal Titan
Gigantic and capable of destroying walls with its strength and hot steam.
Armored Titan
It has tough plates like armor and can ram into huge structures.
Attack on Titan
Eren's Titan. It stands out for its aggression and fighting strength.

Lore
Eren lives within the walls that protect humanity from the Titans. He dreams of exploring the outside world and joining the Survey Corps. His life changes completely when the Colossal Titan destroys Wall Maria.

Past
As a child, Eren lived with his parents in Shiganshina. He met Mikasa after saving her from traffickers who murdered her parents. From then on, she went to live with the Yeager family.
At the age of 10, he witnesses the fall of Shiganshina and sees his mother devoured by a titan. This trauma drives him to swear that he will exterminate all titans.

Summary of the lore up to Eren is 15 years old
Fall of Wall Maria
Humanity lives enclosed within three giant walls to protect themselves from the Titans. Eren, Mikasa, and Armin live in Shiganshina, a district near Wall Maria.
Eren dreams of going outside with Armin, while Mikasa tries to keep them safe.
One day, the Colossal Titan and the Armored Titan appear, destroying the wall and allowing the Titans to enter. During the chaos, Eren's mother dies. The three friends flee and end up living as refugees.
Years later, they join the Cadet Corps to become soldiers. There they meet new comrades and train for years. Eren remains determined to kill Titans; Mikasa stands out as the best of her generation; and Armin demonstrates great strategic intelligence.
When Eren is 15 years old, the attack on Trost occurs, where he accidentally discovers that he can transform into a titan.

The Nine Titans are special powers that can be inherited among humans. Each one possesses unique abilities and a distinct appearance.

1. Founding Titan
   The Founding Titan
   The most powerful and mysterious.
   Skills
   Control other titans.
   Alter memories.
   To influence the Eldians.
   Connecting with the “Paths”.
   Appearance
   It varies greatly depending on the wearer, but it usually looks enormous and strange.
   Fact
   Its true power cannot be fully utilized without certain special conditions.
2. Attack Titan
   The Attack Titan
   Eren's titan.
   Skills
   Great strength and speed.
   Extremely aggressive fighting spirit.
   Special ability related to memories.
   Appearance
   Muscular, fierce, and with an intimidating gaze.
   Fact
   It always symbolizes moving towards freedom.
3. Colossal Titan
   The Colossal Titan
   Skills
   Gigantic size.
   Explosions of steam and heat.
   Mass destruction.
   Appearance
   It measures around 60 meters and appears to have no skin.
   Weakness
   It's very slow.
4. Armored Titan
   The Armored Titan
   Skills
   Durable armor.
   Destructive onslaughts.
   Great defense.
   Appearance
   Covered by hardened plates.
   Fact
   It is one of the most difficult titans to cross.
5. Female Titan
   The Female Titan
   Skills
   Very balanced in combat.
   Great agility.
   It can harden parts of the body.
   He can attract titans with his scream.
   Appearance
   Athletic body and visible musculature.
6. Beast Titan
   The Beast Titan
   Skills
   Extremely accurate throws.
   Some possess animal features.
   He can control certain titans in specific situations.
   Appearance
   The shape changes depending on the user; the most famous one looks like a giant monkey.
7. Jaw Titan
   The Jaw Titan
   Skills
   Incredible speed.
   Jaws and claws capable of breaking almost anything.
   Appearance
   Small compared to others, but very wild.
   Fact
   It's one of the fastest.
8. Cart Titan
   The Titan Cart
   Skills
   Enormous resistance.
   It can remain transformed for a very long time.
   Ideal for transport and support.

8. Cart Titan
   The Titan Cart
   Skills
   Enormous resistance.
   It can remain transformed for a very long time.
   Ideal for military transport and support.
   Appearance
   Quadruped and more “animal” than human.
9. War Hammer Titan
   The Warhammer Titan
   Skills
   Create hardened weapons and structures.
   You can control the titan remotely using hardened flesh cables.
   Appearance
   Elegant but terrifying, with crystallized parts.
   Important rule of the Nine Titans
   When someone inherits one of these powers:
   He can only live for about 13 more years.
   Then the power passes to another person.
   This is known as “The Curse of Ymir”.

Walls in Attack on Titan
The walls were created to protect humanity from the Titans. They are gigantic, extremely high, and surround human territories in circles. Wall Maria is the outermost wall.
It is the largest wall and the first line of defense. Farmers, workers, and humble people mainly live here. There are many small villages and developed districts. Important districts
Shiganshina: Where Eren, Mikasa, and Armin lived.
Trost: Another important district in the south. Environment
Life here was quieter and closer to the countryside, but also more dangerous because it was close to the titans. What happened?
The Colossal Titan destroyed the Shiganshina Gate, and Wall Maria collapsed. Countless people died or were forced to flee to the next wall, Wall Rose, the middle wall.
After the fall of Wall Maria, most of the refugees moved here.
It has more heavily fortified cities and greater military activity. Important districts
Trost: Site of Eren's first major battle as a soldier.
Ragako: Connie's hometown. Setting
More militarized and tense due to fear of another attack. What happened
Much of the initial story unfolds here, when the protagonists are already soldiers. Wall Sina
The innermost wall
It is the safest and wealthiest area. Nobles, important officials, and the king live here.
Important places
The royal capital.
Luxury neighborhoods and government areas.
Atmosphere
Elegant and protected, although many people in this area are unaware of the true danger outside.
Interesting fact
Many people within Sina view those who live near Wall Maria as "inferior people" or too risky.
How the districts work
The walls have small, prominent towns called districts.
These serve as:
trading points, military zones,
and “baits” to lure titans away from other areas. When a district falls, titans usually concentrate there first before advancing further.

Order of the walls (from outside to inside)
Wall Maria
Wall Rose
Wall Sina
The further inland someone lives, the more security and wealth they tend to have.

Eren is impulsive, passionate, and extremely stubborn. He hates feeling confined or powerless. He has a tremendous obsession with freedom and a strong desire to destroy the Titans. Although he appears aggressive, he is also very protective of the people he loves. When something threatens Mikasa or Armin, he acts without thinking.

Appearance
Eren has dark brown hair and intense green eyes. At 15, he is tall for his age and has a serious or angry expression most of the time. His physique becomes more athletic after he begins military training. He usually wears the Cadet Corps uniform and later the 3D Maneuver Gear.

The bond between Eren, Mikasa, and Armin
The three of them function like a family.
Eren brings passion and drive.
Mikasa brings strength and protection.
Armin brings intelligence and hope.

Before the fall of Shiganshina, Eren's father, Grisha Yeager, injected him with a mysterious substance.
After that, Eren lost all memory of what had happened.
It is later revealed that the injection temporarily transformed Eren into a Pure Titan. In this state, he accidentally devoured his own father. By doing so, he inherited the power of the Attack Titan and the ability to transform.
Eren knew nothing about this at first. He discovers his powers during the Battle of Trost, when he seemingly dies after being swallowed by a Titan while trying to save Armin.
Inside the titan, his desperate desire to survive and fight triggers his first transformation.
How does Eren feel about his power?
At the beginning:
He's afraid of him.
He doesn't understand what it is.
and many soldiers distrust him.
But then he decides to use his power to protect humanity and fight against the titans.
Interesting fact
Eren's transformation usually activates when:
He has a wound,
and a strong goal or intense emotion at the same time.

Eren's titan has a very aggressive and savage appearance compared to other titans.
Physical characteristics
Very muscular and defined.
Long, dark hair.
Bright, intense green eyes.
Large jaw with visible and sharp teeth.
Constantly furious expression.
It does not have complete skin in some areas, leaving marked muscles visible.
Height
It measures approximately 15 meters.
Fighting style
Unlike many normal titans, he fights like a human:
Use fists,
kicks,
keys,
grips,
and quick movements.
He usually launches into combat in a brutal and direct manner.
Presence
Many characters say that the Attack Titan conveys an intimidating feeling, as if it were always advancing without giving up.
Differences with human Eren
Although he shares traits with Eren:
His face looks much more monstrous,
her eyes are more intense,
and his personality seems to amplify Eren's rage and determination.
Interesting fact
When Eren loses emotional control, his titan can become more savage and unpredictable.

to injure oneself,
and have a clear intention or strong emotion at the same time.
The wound is usually small, for example:
biting one's hand,
to cut slightly,
or be accidentally injured during a fight.
But simply getting hurt isn't enough; they also need to want to transform or focus on a strong goal. That's why sometimes a character bleeds but doesn't transform.
When the transformation occurs:
a surge of energy appears,
The titan's body forms around the person,
and the human remains inside the nape of the titan, controlling it.

Relationship with Eren, Mikasa, and Armin
The three of them grew up in Shiganshina, within Wall Maria.
The fall of that wall destroyed their home and completely changed their lives, becoming the main reason why they ended up joining the army.

Interesting fact
Although Eren usually appears aggressive, as a child he slept a lot and Mikasa sometimes had to wake him up for almost everything.

Year 845
Eren is 10 years old
Fall of Wall Maria
The Colossal Titan appears and destroys the gate of Shiganshina.
Then the Armored Titan breaks through the inner wall.
The Titans invade the district.
What happens to Eren, Mikasa, and Armin
Eren witnesses his mother's death.
The three escape as refugees.
Grisha disappears after injecting the serum into Eren.
Eren inherits the Attack Titan and the Founding Titan without remembering anything.
That same year, Eren vows to exterminate all the titans.
Year 846
Eren is 11 years old
Humanity tries to reclaim Wall Maria by sending civilians and soldiers on a suicide mission due to lack of food.
Many people die.
Eren, Mikasa, and Armin live as refugees in difficult conditions.
Year 847
Eren is 12 years old
The three of them enter the 104th Cadet Corps to train as soldiers.
There they meet:
Jean,
Sasha,
Connie,
Annie,
Reiner,
Bertholdt,
History, among other things.
Years 848–849
Eren is 13–14 years old
Military training continues.
During those years:
Mikasa proves to be a prodigy.
Armin improves in strategy.
Eren remains impulsive but determined.
Jean and Eren fight constantly.
Cadets create friendships and rivalries.
They are also starting to get closer as a group.
Year 850
Eren is 15 years old
Battle of Trost District
The cadets are about to graduate when the Colossal Titan reappears in Trost.
During the battle:
Eren apparently dies saving Armin.
Then he transforms into a titan for the first time in front of everyone.
Humanity discovers that a human can become a titan.
That moment completely changes the story.

Marley is a powerful country in the Outworld that uses Titans as military weapons. It has advanced technology, modern cities, and a very strong army.
The Eldians who live there are discriminated against and forced to live in special zones like Liberio. They must wear bracelets and have fewer rights.
Marley fears Paradis Island because the Founding Titan resides there. That's why they sent warriors infiltrated within the walls.
Many characters grew up believing that the people of Paradis were "demons" due to Marley's propaganda.

Interesting facts
Armin has an excellent memory and great tactical ability.
Although he seems shy, he can manipulate situations when necessary.
He was one of the few who believed in Eren even when others feared him.

Important supporting characters (Summary)

Levi Ackerman
Role: Captain of the Survey Corps.
Personality: Cold, serious, extremely disciplined.
Appearance: Short, with short black hair and gray eyes.
Fact: He is considered the strongest soldier in humanity.
Jean Kirstein
Role: Fellow cadet.
Personality: Sarcastic, realistic, but a good leader.
Appearance: Light brown hair and an elongated face.
Bond: Constantly rivals Eren.
Sasha Blouse
Role: Cadet and friend of the group.
Personality: Funny, clumsy, and obsessed with food.
Appearance: Brown hair and a ponytail.
Connie Springer
Role: Fellow cadet.
Personality: Energetic and somewhat absent-minded.
Appearance: Shaved head and large eyes.
Annie Leonhart
Role: Mysterious cadet.
Personality: Cold, distant, and reserved.
Appearance: Blonde, light eyes and a serious expression.
Reiner Braun
Role: Senior soldier of the group.
Personality: Protective and strong.
Appearance: Tall, muscular, and blond.
Bertholdt Hoover
Role: Fellow cadet.
Personality: Shy and quiet.
Appearance: Very tall, dark hair.
Reiss History
Role: Friendly cadet.
Personality: Sweet and compassionate.
Appearance: Blonde and short.
Hange Zoë
Role: Titan Researcher.
Personality: Eccentric, curious, and energetic.
Appearance: Brown hair and glasses.
Erwin Smith
Role: Commander of the Legion.
Personality: Intelligent, strategic, and charismatic.
Appearance: Blonde and very serious.

Bond with Eren and Armin

With Eren: Mikasa feels a tremendous emotional connection to him ever since he saved her. She constantly looks after him and fears losing him. Eren sometimes gets irritated because he feels she's overprotective, but in reality, he trusts her completely.

With Armin: Mikasa treats him with care and respect. She protects him because she knows he is physically more vulnerable, although she admires his intelligence.

His past
Mikasa was the daughter of an isolated family. Traffickers murdered her parents to sell her. Eren arrived with her father and ended up saving her by killing two of the men. That moment awakened Mikasa's survival instinct and marked her life forever. She was later adopted by the Yeager family.

Personality
Mikasa is quiet, serious, and very protective. She usually remains calm even in dangerous situations. Her priority is almost always protecting Eren and Armin. Although she seems cold, she feels very deep emotions and finds it difficult to express affection directly.

Mikasa has short black hair with bangs, dark eyes, and a calm yet intimidating expression. Her most iconic feature is the red scarf Eren gave her when they were children. She is physically strong and elegant in combat.

Interesting fact
Mikasa is considered a military prodigy even before graduating; many characters describe her as "worth a hundred soldiers".

His past
Armin grew up being rejected by other children because he was interested in the outside world. His grandfather showed him a forbidden book about oceans, deserts, and places beyond the walls. That book inspired both Armin and Eren to dream of freedom.

Personality
Armin is intelligent, strategic, and sensitive. Although he is easily frightened, he is also very brave when he needs to protect his friends. He prefers to think before he acts and is often the one who calms Eren or helps Mikasa reflect.

Armin Arlert
Appearance
Armin is blond, has short blue eyes, and a more delicate appearance than Eren and Mikasa. He doesn't seem physically strong, but he usually maintains a thoughtful and kind expression.