Natsume's Book of Friends: Nyanko-sensei & The First Errand is a special anime that premiered in fall 2013, produced by Brain's Base.

About the production: the story comes from an original script, there is 1 episode of about 23 minutes and its current status is "finished".

Its main genres are drama, fantasy, slice of life and supernatural, with themes such as Youkai, Male Protagonist, Primarily Child Cast and Rural.

On AniList, Natsume's Book of Friends: Nyanko-sensei & The First Errand has an average score of 73%, a good score, and appears on 9,311 users' lists.

This anime DVD has a completely original story not told in the manga or its earlier anime adaptations. Note: Given to subscribers of LaLa and LaLa DX magazines. (Source: AniDB)

Official synopsis from AniList.