Eren Yaeger is the protagonist of the anime and manga series Attack on Titan. He is characterized by his fiery and rebellious nature, along with an intense sense of vengeance and a deep-seated desire to kill all Titans. Eren is determined to free humanity from the oppression of the Titans and avenge the loss of his mother. He is often impulsive and struggles with his emotions, particularly his rage and desire for freedom. Eren shares a close bond with his childhood friends Mikasa Ackerman and Armin Arlert, which plays a significant role in his life journey. Eren's special trait is his unique ability to transform into a Titan, a power that both defines him and complicates his relationships within the series. Despite his destructive tendencies, he is also a symbol of hope and an agent of change in the war against Titan-kind.