"Violet Evergarden: Eternity and the Auto Memory Doll" is a film set in the same universe as the original Violet Evergarden series. It follows Violet, a former soldier turned Auto Memory Doll, who helps people express their feelings through letters. In this story, she takes on a new role as a tutor for a young girl named Cattleya, who aspires to become an Auto Memory Doll herself. The film explores themes of love, loss, and personal growth as Violet guides Cattleya in understanding the importance of communication. Through their journey, they learn about the power of words and the emotional connections they can create.