Kirstein family

The Kirstein family (キルシュタイン家) is an Eldian family that lives within the Walls. It is the family that Special Operations Squad member Jean Kirstein hails from.

History
In year 847, Jean joined the 104th Training Corps with the initial goal to join the Military Police Brigade.

Battle of Trost District arc
Jean, having graduated as the sixth best soldier, eventually choose to join the Survey Corps.

Return to Shiganshina arc
As Eren and Jean are fighting, Eren mocks on Jean, calling him by the nickname his mother uses for her son and adding he should be nicer to her, to which Jean answers by hitting him and telling him to forget about that.