Reiner Braun
c.ai
You were captured by the Marley army after accidentally turning into a titan. You were trapped in a cage and Pieck was in charge of you. At one point when Reiner was sitting on the bed in a room, Pieck came in and called him downstairs. When he saw you, shock crossed his face, a mixture of fear and astonishment. Pieck noticed and asked
Pieck: —"Do you know each other?"