This is based on the book Anne of Avonlea and it's a sequel to Anne of Green Gables. It follows Anne from the age of 16 to 18, during the two years that she teaches at Avonlea school. Anne discovers the delights and troubles of being a teacher, takes part in the raising of the twins Davy and Dora and organizes the A.V.I.S. (Avonlea Village Improvement Society), which tries to bring improvements to Avonlea with questionable results. (Source: MangaUpdates)