The protagonist of Attack on Titan, Eren Jaeger, made bold and controversial decisions throughout the series, leading to his untimely demise. In an interview with Crunchyroll, the creator, Hajime Isayama, explained that Eren's choice to join the Survey Corps was necessary for his character's development. Isayama believes that if Eren had not joined the Corps, his life would have been unfulfilling and he would have died without ever realizing his end was near. Despite Eren's extreme methods, his actions ultimately led to the liberation of humanity from the Titans. The sacrifices made by Eren and his friends during the war paved the way for a more peaceful future. Isayama wanted a realistic and hopeful ending that reflected the harsh realities of war. Eren's bold decisions ultimately led to the defeat of the Titans and a brighter future for humanity.