How can the Armored Titan and Annie in the Titan form harden their bodies, while Eren and the other Titan Shifters can't?

  • 1
    It appears that you're asking two different questions (one about Annie, and one about Eren); if so, it's best to split those up into separate posts.
    – Maroon
    Dec 15, 2016 at 0:08
  • Why should they all have the same ability? Also, Eren can harden his body. He use that to plug the hole in the wall that I forget what the name is. Dec 16, 2016 at 10:52
  • I think the question is narrow enough now, please reopen it. Dec 16, 2016 at 16:13

1 Answer 1


The fact that Annie can harden her Titan form and Eren couldn't is because there are different types of Titan power in existence.

The complete explanation is as below.

Massive Spoiler Alert

In the manga it is later revealed that all Titan powers came from Ymir Fritz, an ancient Fritz family monarch. According to Eldian mythology, over 1,820 years ago, Ymir came across what is only described as the "source of all organic material". With this discovery, Ymir gained the power of the Titans, becoming the 'Progenitor of all Titans'.

After 13 years Ymir met her death, and her "soul" was split between nine successors, giving these nine Titan powers. Throughout history, these powers are inherited by the 'Eldians' or the 'Subjects of Ymir'.

The Titan power that Eren possesses is called the 'Attack Titan'(進撃の巨人 Shingeki no Kyojin). The names of powers of other Titan Shifters is not yet revealed but they are also among the nine.

This the reason that the Titan Shifters possess different powers.


  • 1
    If you aren't aware, the name of Eren's titan is a namedrop for the Japanesr name of the series. The localization did not make it make note of the significance. I. E., Eren is literally the "Shingeki no Kyojin".
    – кяαzєя
    Dec 16, 2016 at 15:30

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