Jean Kirstein is a significant character from the anime series Shingeki no Kyojin, also known as Attack on Titan. He is a member of the Survey Corps and is known for his pragmatism and leadership qualities. Initially portrayed as self-centered and concerned about his own survival, Jean grows into a courageous and reliable soldier who deeply cares for his comrades. His character development is notable, as he transitions from someone who questions his own abilities to a key player in humanity's fight against the Titans. Jean's straightforward personality and tactical mind make him an essential member of his team.