Violet Evergarden, a former child soldier turned “Auto Memory Doll” scribe, has made a name for herself writing letters that evoke the feelings her clients cannot, in pursuit of understanding the meaning behind the “I love you” spoken to her long ago. When a terminally ill boy asks her to fulfill one last request for his family, Violet must confront her own feelings of love, loss, and her past with the one who told her those cherished words in order to write one final letter.