Eren

Biodata

Feature	Value
Name	Eren Yeager (艾伦)
Alias(es)	Spirit Giant
Species/Race	Human; Intelligent Titan / Titan Power bearer
Gender	Male
Affiliation	104th Training Corps; Survey Corps
Occupation/Role	Trainee soldier; Titan Power wielder
First Appearance	Chapter 11

Power Progression

Stage / Realm / Level	Chapter	Notes
104th Training Corps recruit	55	Ranked sixth among the graduating class. He has no exceptional specialized skill, but improves continuously through hard work.
Spirit Giant manifestation	62 71	Survives being swallowed and transforms into the Spirit Giant, emerging from its nape after the Titan collapses. His initial form targets other Titans through his overwhelming hatred of them.
Developing Titan control	77 81	Retains fragments of memory from his transformation and shows greater self-control than expected; he lifts and carries the massive boulder needed to seal Trost's breach.
Titan combat against intelligent Titans	96 97	His Spirit Giant is physically stronger than the Female Giant, but his lack of transformed combat skill leads to his defeat and capture.
Coordinate power — unawakened	111 112 115	Believed to have inherited the Coordinate, the Titan-controlling power, through Grisha. It has not yet awakened.

Background / History

As a child in Shiganshina, Eren openly admired the Survey Corps while much of the public derided them. He resented life within the Walls, calling it livestock-like, and rejected both public scorn and the government taboo against discussing the outside world. Alongside Mikasa Ackerman and Armin Arlert, he dreamed of freedom beyond the Walls 11 14.

When the Colossal Titan breached Wall Maria, Eren and Mikasa attempted to free his mother, Carla, from the wreckage of their home. He refused Carla's demand that they flee, continuing to struggle to save her until Lian Ye killed the approaching Titan and enabled Carla's rescue 15 16. Carla and Grisha Yeager later disappeared during the evacuation and were presumed dead, hardening Eren's hatred of Titans 23 25.

Eren entered the 104th Training Corps with Mikasa and Armin, determined to gain the power to exterminate Titans. He graduated sixth and chose the Survey Corps rather than the safer Military Police route 25 55 57.

During the Battle of Trost, Eren was swallowed by a Titan but manifested Titan Power as the Spirit Giant. Though initially unable to remain fully conscious, he attacked Pure Titans rather than humans, later revealing himself from the Titan's nape 65 71. He subsequently agreed to use this power to seal the breach in Wall Rose, carrying a boulder larger than his Titan body into place while allied soldiers defended him 79 81.

Later revelations link Eren's Titan Power and suspected Coordinate inheritance to Grisha. According to Lian Ye's reconstruction, Grisha injected Eren with Titan serum, then allowed Eren—while transformed into a mindless Titan—to consume him and inherit both powers 115.

Personality

Eren is hot-blooded, rebellious, and fiercely driven by freedom. As a child, he refuses to accept the Walls as humanity's permanent boundary or submit to the social expectation that people should remain safely contained within them 14.

His hatred of Titans becomes the core of his resolve after his parents' disappearance. He repeatedly vows to eradicate every Titan, pursues strength with single-minded intensity, and is willing to risk his life in battle to protect others or advance humanity's counterattack 25 79 115.

Although impulsive, Eren can restrain himself when reminded of discipline and reason. During a training expedition, Armin's intervention convinces him to slow down rather than recklessly break formation 32. His encounter with the Female Giant also teaches him that he cannot always rely on senior soldiers to explain a situation and must learn to think independently 96.

Abilities & Skills

Titan Power

Eren can transform into the 15-meter-class Spirit Giant through self-inflicted injury combined with a sufficiently strong intention 79 80.

• Possesses strength sufficient to lift and transport a boulder weighing tens of tons 81.
• Targets Pure Titans instinctively when driven by his desire to exterminate them 65.
• Has enough physical power to be considered slightly stronger than the Female Giant in build and raw strength 97.
• Can be forcibly removed from his Titan body through the nape without necessarily being killed 97.
• Repeated transformations consume severe physical stamina; as a novice, he can transform roughly three to four times per day, with later forms becoming smaller 116.
• Early transformations are unstable and can become aggressive, though his control improves over time 77 80 81.
• His transformed combat skill remains inferior to the Female Giant's despite his greater raw strength 96 97.

ODM Gear Combat

Eren trains as a soldier and uses ODM Gear in combat against Titans.

• Ranked sixth in the 104th Training Corps graduation assessment 55.
• Launches an immediate ODM Gear counterattack when the Colossal Titan breaches Wall Rose 58.
• Has the mental fortitude needed to face Titans directly without panicking 44.
• His determination to save Armin contributes to him being swallowed during the Trost battle 77.

Coordinate

The Coordinate is a suspected inherited ability associated with controlling Titans.

• The First King used it to command Titans in constructing the Walls 110.
• Eren is considered its most likely current bearer, despite having shown no ability to use it 111.
• Lian Ye concludes that Grisha transferred it to Eren along with Titan Power 115.
• Its activation conditions and practical limits remain unknown 110 112.

Equipment / Weapons / Items

• ODM Gear — Used during training, expeditions, and Titan engagements 44 58.
• Titan Power — His primary combat asset, activated through self-harm and intent 79.

Relationships

• Mikasa Ackerman — Childhood friend and longtime protector. She helps Eren rescue Carla and rushes to him when his Spirit Giant collapses 15 16 71.
• Armin Arlert — Childhood friend who shares Eren's curiosity about the outside world. Armin often tempers Eren's impulsiveness and later defends him against the Garrison Regiment 14 32 72.
• Carla Yeager — Eren's mother. Her disappearance and presumed death intensify his hatred of Titans; later revelations indicate she was sacrificed in the process that transferred Titan Power to him 25 115.
• Grisha Yeager — Eren's father. He injected Eren with serum and, according to Lian Ye's reconstruction, arranged for Eren to inherit Titan Power and the Coordinate by consuming him 78 112 115.
• Lian Ye — A powerful hunter Eren admires and seeks guidance from. Eren trusts him enough to ask that he stop him if his Titan form goes berserk 24 25 79.
• Dot Pixis — Treats Eren as a soldier and source of vital intelligence rather than a monster, then entrusts him with sealing Trost's breach 77 79.
• Levi Ackerman — Retrieves Eren after the Female Giant battle and has him placed under Levi Squad's supervision and experimentation 85 101.
• Female Giant — Defeats Eren in direct Titan combat, tears him from his Titan body, and attempts to abduct him 96 97.

Story Role / Major Arcs

Shiganshina and the Fall of Wall Maria

Eren's desire to leave the Walls clashes with his mother's fears and society's contempt for the Survey Corps. The breach of Wall Maria transforms this desire for freedom into a consuming vow to destroy the Titans 14 25.

104th Training Corps

He trains with Mikasa and Armin, seeks Lian Ye's advice on becoming stronger, and graduates sixth in his class. He then joins the Survey Corps to fight Titans outside the Walls 24 25 55 57.

Battle of Trost

Eren manifests the Spirit Giant after being swallowed, survives his first transformation, and becomes central to the plan to retake Trost. His Titan form carries the boulder that seals the breach in Wall Rose, securing humanity's first successful counterattack 71 79 81 82.

Female Giant Expedition

The Survey Corps uses Eren as bait to capture the Female Giant. Eren transforms to fight her but loses because of his inferior combat skill, and she forcibly extracts and abducts him before he is recovered 96 97 101.

Coordinate and Titan Origins

Eren becomes the suspected bearer of the Coordinate, making him the priority target of the undercover Titan warriors. Lian Ye later reconstructs the events of Eren's inheritance and challenges his simple view of Titans as mere enemies 111 112 115.

Armored and Colossal Titan Crisis

When Reiner and Bertholdt reveal themselves as Titans, Eren struggles to accept that people he knew could be humanity's enemies. As Lian Ye departs the Survey Corps, he urges Eren to realize the still-untapped potential that makes him humanity's hope within the Walls 116 126.

Notable Quotes

“One day, I will drive all the Giants from this world, without a single one left!” 25

“I can definitely do it!” 79