Carolina's expression continued to change as she listened to Susan's explanation. She put on a look of surprise, disbelief, confusion, sadness, before finally changing her facial expression back to look normal.
Susan had just said that the DoJ, the dangerous organization they had managed to track down at its base, was empty and nothing when they got there, as if it had vanished without a trace. As if it never existed.
DoJ or Defender of Justice is the organization that arrested Charlie, Carolina's father, even though it turned out that Charlie was a member of the organization, but Carolina knew that her father was forced to join the organization. Her father couldn't possibly join such a dangerous organization.
In order to find and protect her father, Carolina deliberately informs Susan and Bagas about the organization and provides a condition that she will not cooperate with them until the organization is sorted out.
