Jean Kirstein

A boy with a sharp face. Age 15→19. Height 175cm, weight 65kg (at age 15). Born on April 7. Hails from the Trost District at the southern end of Wall Rose. Graduated 6th in the 104th Training Corps.

He is a straightforward and sarcastic person who speaks his mind. He often clashes with Eren, who constantly pursues ideals, and mocks him as a "suicidal maniac." While he excels in handling the vertical maneuvering equipment and has a good grasp of the current situation, his self-centered behavior was a concern. However, his friend and fellow trainee Marco recognized his potential as a leader, saying, "He's not strong, so he understands the feelings of the weak."

Initially, he concluded that "humanity cannot win against the Titans" and aimed to join the Military Police Brigade to live safely in the interior. However, after the Battle of Trost District, he declared his intention to join the Survey Corps to inspire his demoralized comrades, including Marco, who had died.

During the Marleyan expedition operation in 854, he led Sasha and Connie. After Eren initiated the "Rumbling," he joined forces with Magath and the Marleyan Warrior Unit, despite past grudges, to work together for their mutual goals.

In the "Battle of Heaven and Earth," he played a crucial role by detonating the bombs wrapped around Eren's neck, but was turned into a Titan by the gas attack from the "glowing centipede." He attacked Reiner but returned to human form after Eren was defeated by Mikasa, which nullified the Titan power.

In 857, he heads to Paradis Island as an ambassador for the Allied Nations.

In the special edition DVD of Volume 13, Jean is the main focus, and a special opening sequence featuring Jean instead of Eren was created. His mother (voiced by Minami Takayama) also appears, and she calls him "Jumbo."