Eren Yeager is the main protagonist of the manga and anime series Attack on Titan. Known for his fiery spirit and unwavering determination, Eren serves as a catalyst for the story's events, initially driven by a desire to protect humanity from Titans. Eren's journey of self-discovery is marked by a complex and often violent path, as he grapples with his inherited abilities and the horrors of his world. He is a deeply loyal friend to his childhood friends Mikasa and Armin, forming a strong bond that helps him through his darkest times. However, Eren's personality is also marred by a deep-rooted fear and a willingness to resort to extreme measures to achieve his ends. Eren's relationship with his adoptive parents is pivotal, as he honors their sacrifice and is burdened by his father's legacy. His struggle with his emerging powers, the truth about the Titans, and his ultimate goals create a compelling character arc that shapes the direction of the series.