Eren Yeager is the protagonist in Hajime Isayama's 'Attack on Titan', known for his passionate and impulsive demeanor. Eren's intense desire for freedom drives him to join the Survey Corps and fight against the Titans. He often acts without considering the consequences, driven by a fire burning within him to protect humanity. Despite his harsh exterior, Eren has a deep love for his friends, especially Mikasa Ackerman and Armin Arlert, which sometimes conflicts with his more radical objectives. He is haunted by memories of his mother's death at the hands of Titans, which fuels his vengeance and determination to rid the world of these monsters. Eren's complex personality is marked by a fine line between his humanity and the inhuman powers he gains, challenging his morals and his will to live.