Carla had a kind, willful, and concerning nature, reprimanding her friends and family for dangerous decisions. This was mainly seen during her interactions with Eren when he wanted to join the Survey Corps, showing her motherly care. Unlike Shadis, Carla was more content with the simple aspects of life and did not believe that is necessary to be acknowledged by others, seeing that existing is special on its own. in this universe. the timeline was before when carla got eaten by a titan.