Eren is the main grapheme of Attack on Titan , ane of the most popular anime ever made. When he was starting time introduced, he was a child who wanted to join the Survey Corps, a co-operative of the military that fights humanity'south predators, the titans. After they broke into his habitation and one of them ate his female parent, Eren joined the 104th Buck Corps and trained alongside his new comrades.

After they graduated, Eren discovered that he could transform into a titan and became the Survey Corps' greatest weapon. Another soldier from the 104th Cadet Corps, Annie, likewise had this ability only used information technology to attack the Survey Corps, leaving Eren to have to fight her at the stop of the first flavour. He'south changed a lot since then and here are some of the clearest things that testify it.

Updated December 13, 2021 by Ritwik Mitra: Eren Yeager could possibly be one of the best protagonists in anime history. He was the driving strength backside the bulk of developments in the initial moments of Attack on Titan, before taking things into his own hands after the time skip and initiating a serial of events that no one could've seen coming. As a result, Attack on Titan has get an absolute must-scout evidence that anime fans should check out sooner rather than later on. Allow's take a wait at just how much Eren has changed ever since the events of the first flavour.

14 He Killed A Titan Without Transforming Into One

Eren gets his first kill

Eren has killed more than anyone else in the franchise, merely he has mostly used his titan abilities to fight his enemies. Because of that, it wasn't until the 2d season when he would kill a titan the manner he was trained to in the 104th Cadet Corps.

When Historia, Ymir, Reiner, Bertholdt, and Connie were surrounded by a group of titans, the Survey Corps saved them. Eren successfully stabbed one of the titans in the neck, and was happy to become his first kill that way.

13 He Learned To Accept Reality

Reiner grabs Eren

Eren couldn't believe it when Reiner and Bertholdt revealed themselves to be the Armored and Colossal Titans. He didn't desire to think that someone he looked up to like a blood brother, equally well as another shut comrade, could be his enemies. However, once they transformed, Eren knew that he couldn't deny it and fight back.

When Annie turned out to be the Female Titan, Eren hesitated to fight her even though the ii weren't close. Existence able to fight confronting two of his close friends proved that Eren learned from his past mistake.

12 He Activated The Coordinate

Eren uses the coordinate

At the end of the second flavor, Eren found the titan that ate his mother. When he punched the titan, he activated the coordinate, causing her to be attacked by the other titans around them. At the time, Eren didn't know what this power was and anybody was surprised that he was able to practice this.

It turned out that since Eren inherited the Founding Titan, he could command all of the titans whenever he was made contact with someone from the Fritz family. The titan that ate Carla turned out to be Dina Fritz, a distant relative of Paradis' royal family.

11 He Institute Out How He Became A Titan

Eren As The Attack Titan

The method past which Eren obtained his powers remained a mystery for a long fourth dimension. When he met Rod Reiss, the king of Paradis, he learned what happened. His male parent, Grisha, attacked the Fritz family in social club to take Frieda Reiss' Founding Titan. He killed her and everyone around them, except for Rod.

Grisha then injected Eren with titan serum and had his son eat him, giving him both the Founding and Attack Titans that he inherited. Eren wasn't able to call back this, and was shocked that he ate his own father without knowing it.

10 He Learned Well-nigh Grisha's By

Grisha crying

When Eren remembered that his instructor, Keith, was friends with Grisha, he asked the former commander what he knew almost his father. Keith had plant Grisha outside of the walls. Grisha told him that he couldn't think much about his past so Keith brought him to Shiganshina, where he became the district'south doctor and met Carla.

However, Eren would learn after that Grisha'due south amnesia was a lie. He pretended to forget everything because he was from Marley. With his first wife, Dina Fritz, he led the Eldian Restorationists. One time they were discovered, the group was turned into titans and sent to Paradis. A Marleyan officer that worked with them gave Grisha the Attack Titan and told him to get-go a new life within the walls.

9 He Went Dorsum Home

Hange, Mikasa, Eren, and Levi go into the Yeagers' basement

When the Survey Corps was ready to retake Wall Maria, Eren was finally able to go back to Shiganshina. It was the showtime fourth dimension he, as well as Mikasa and Armin, had been there since they were children and saw the titans break into their home. One time they returned, they had to fight against the Colossal, Armored, and Fauna Titans.

Luckily, Eren was able to fix the hole in the wall and was finally able to go into the basement of his childhood home, forth with Mikasa, Hange, and Levi. Here, Eren learned about Grisha's life in Marley, along with other secrets about the world beyond the walls.

eight He Defeated The Colossal Titan

Eren vs Colossal Titan

Since the offset episode, the Colossal Titan seemed to exist the biggest threat in the series. Without Bertholdt boot downwardly the wall and letting the titans into Shiganshina, a lot of the events in the series wouldn't take happened. During the Survey Corps fight against the Colossal, Beast, and Armored Titans, Eren and Armin teamed upwardly to defeat Bertholdt.

They were able to play a trick on him into letting his guard downward and defeated him. Withal, as a result, Armin was almost burned to decease. In gild to salvage him, Levi injected Armin with titan serum and had him eat Bertholdt so he could inherit the Colossal Titan.

7 He Saw The Bounding main

Eren at the sea

When they were kids, Armin showed Eren a book that he found. By reading this volume, they learned that other places around the world were very different than the isle they lived on. The place that Armin wanted to go to the nigh was the sea, which Eren didn't think was real.

At the stop of the third flavor, the two of them, along with their friends, went further abroad from the walls than they ever had earlier and eventually reached the sea. Afterwards all these years, i of his goals came truthful, but instead of being happy like Armin and the others were, he thought about killing their enemies on the other side of the sea, hoping that doing so would requite him the freedom he always wanted.

vi He Went To Marley

Eren with a bandage on his head

The outset of season four takes identify a few years after the Survey Corps went to the edge of Paradis. Eren finally went to Marley and pretended to be injured so he could spy on his enemies at a hospital. Due to the time jump and how much more he learned virtually the world, Eren's personality profoundly inverse.

This new side of Eren was null like what fans would have expected him to become. He attacked Marley the aforementioned manner Reiner and Bertholdt attacked Paradis, he manipulated a immature warrior named Falco into sending a letter telling the Survey Corps to join him, and he killed a agglomeration of innocent people so he could inherit the War Hammer Titan before going back home.

5 He Betrayed The Survey Corps

Sasha, Levi, Hange, Jean, and Armin

Out of all of Eren'south actions, betraying the Survey Corps was the most surprising. After having them help him fight the warriors in Marley, he and Zeke, the inheritor of the Beast Titan who was also Grisha's first son, returned to Paradis. Considering of his actions, Eren lost the Survey Corps' trust.

Still, Eren had planned this for a long time and secretly turned some of Paradis' soldiers, equally well as many civilians, onto his side. He led a revolution and overthrew the military machine. The titan shifter that gave the Survey Corps hope became the Eldian devil that took their hope away.

4 He'south Made His Peace With Killing Innocent Civilians

Attack on Titan Injured Eren Jaeger

There was a time when Eren was torn at the thought of killing fellow humans. After all, the battles he was waging were confronting other Titans, then to suddenly kill other humans during the Majestic Government arc was a tough pill to swallow for him.

Even so, later the time skip, information technology seems that Eren has no problem with killing humans at all. The vicious manner in which he destroys Marley and kills a whole host of innocent citizens is downright terrifying to witness.

three He Bankrupt His Bonds Of Friendship With Mikasa And Armin

Armin, Eren, and Mikasa in Attack on Titan

While the expose of the Survey Corps was already surprising enough as is, Eren'southward expose of the Survey Corps was made even worse when he went so far as to suspension his long-lasting friendship with Mikasa and Armin besides.

The chilling manner in which he berates Mikasa is admittedly horrific to witness, forcing Armin into a rage equally he punched his one time-all-time friend. It seems that Eren has gone past the point of no return and has permanently severed whatever and all bonds he had.

2 He's Fine With Committing Genocide For The "Greater Expert"

Eren Yeager in Attack on Titan

At that place was a time when Eren cared more often than not about minimizing equally many losses as possible. However, over fourth dimension, it seems that Eren has come up to take the idea of having to finish off the Subjects of Ymir to finally cease the bicycle of hatred once and for all.

What this basically means is that the Eldians would euthanize their entire race in a bid to leave no one around who can accept on the power of the Titans. It's an farthermost program that certainly has its holes... but, as per Armin, it's besides an extremely noble act likewise.

1 His Hairstyle Is An Obvious Yet Notable Change

10 Best Heroes Turned Villains In Anime, Ranked Eren Yeager

While this indicate might be a scrap moot, talking about Eren's hairstyle is quite of import. Afterward all, nigh Japanese media tend to keep a grapheme'southward haircut in high regard, with their entire character changing if they e'er wish to don a unlike look.

This is precisely the case with Eren. A naive boy who used to have the nearly ordinary hairstyle decided to take an extreme stride to destroy the wheel of hatred, losing his innocence in the process. This is reflected by his modify in his personal appearance.

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