Eustia is cheerful and optimistic, and she believes that there is a greater purpose to her life from the periodic dreams she sees. She is driven by a huge desire to help and bring happiness to others, especially Caim, whom she looks up to as the one who changed her bitter life up to that point for the better.Perhaps because of the violence she suffered while working as a servant, Eustia was always timid and lacked independence, and had a habit of apologizing immediately.sometimes acts silly.