Auto Memories Doll.
It's already been a long time since that name was first popularized. It's a machine that Dr. Orlando created that talks in a natural voice. At first, he only made it to help out his loving wife, but before long they spread out into the world. and companies were made to lend them out.
"I'm Violet Evergarden, the Auto Memories Doll who will rush to provide service anywhere you wish."
That translucent voice comes from a robotic beautiful girl with blonde hair and blue eyes like she came out of a storybook.

The CH Postal Company has just received a request to transcribe a love letter from Irma Felice, a famous opera singer. Accepting the task, Violet Evergarden visits Irma to write her letter. However, not only does Irma provide little information, she asks Violet to write based on her own feelings. Despite Violet's numerous attempts, Irma finds every version of the letter inadequate. 
 
Violet consults her colleagues, and they help her out by writing love letters of their own. Yet even those are rejected by the opera singer. As a last resort, Violet asks Irma for her true thoughts and feelings, hoping to find the missing puzzle piece. Will the Auto Memory Doll be able to translate Irma's emotions into words? 
 
(Source: MAL Rewrite) 
 
Note: Unaired episode included with the 4th BD/DVD release. It takes place between episodes 4 and 5 of the show.

While writing other people’s emotions, she may have neglected her own. Violet Evergarden, the child soldier turned Auto Memory Doll, writes letters that evoke the words her clients can’t. But when a terminally ill boy requests her services for his family, her own feelings about love and loss resurface. Now she must confront her past and the death of the Major. 
 
(Source: Funimation)

A certain point in time, in the continent of Telesis. The great war which divided the continent into North and South has ended after four years, and the people are welcoming a new generation. Violet Evergarden, a young girl formerly known as “the weapon”, has left the battlefield to start a new life at CH Postal Service. There, she is deeply moved by the work of “Auto Memories Dolls”, who carry people's thoughts and convert them into words. Violet begins her journey as an Auto Memories Doll, and comes face to face with various people's emotions and differing shapes of love. There are words Violet heard on the battlefield, which she cannot forget. These words were given to her by someone she holds dear, more than anyone else. She does not yet know their meaning but she searches to find it. 
 
(Source: Anime News Network)

There are countless feelings that we wish to convey to you.
 
From the Kyoto Animation Awards' first Grand Prize winning work, "Violet Evergarden", comes a Gaiden that contains six new episodes. It is a book that can allow people to enjoy the world of "Violet Evergarden" even more, with the heartwarming exchanges between Violet and her customers and stories in which familiar members of the CH Postal Service play a big part.
 
"I rush anywhere my clients might desire. I am from the Auto-Memories Doll service, Violet Evergarden."
 
Please accept the "sentiments" of the story that this beautiful Auto-Memories Doll narrates.

"The world keeps on moving. Even if it ends someday..." 
Ever since their reunion, Violet and Gilbert have been slowly nurturing their newfound relationship. But, being the popular Auto Memory Dolls and a Colonel of the army, the busy two couldn't even meet and the days of the two not seeing each other continues. 
In the meantime, C. H Postal Company is undergoing times of change, and the world around her is also going to change greatly. Violet visits Alfine, the city of dreamers. 
"I will travel anywhere to meet your request. I'm an Auto Memory Doll, Violet Evergarden." 
This is the story of Violet Evergarden. 
(Source: Official Publisher, translated)

Special trailers released on YouTube promoting the two volumes of the original light novel and announcing Violet Evergarden's anime adaptation. Features all original animation not used in the series.

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