The main character, Violet Evergarden, works at the post office. Only she isn’t an ordinary girl—she is an auto-memory doll. Many years ago, Professor Orlando originally began creating small robots with this name to help his wife, who was rapidly losing her eyesight. Soon these dolls became so popular among companies that the professor sold the rights to them. Now this is the name for young girls who perform the same functions as those robots once did. In the light novel, Violet’s astonishing life and her mysterious past are described.