Natsume Yuujinchou Roku
English name: Natsume's Book of Friends Season 6
Genres: Drama, Slice of Life, Supernatural
Type: TV, Episodes: 11
Aired: Apr 12, 2017 to Jun 21, 2017
Studio: Shuka
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
Takashi Natsume has grown accustomed to his encounters with youkai through the Book of Friends, which contains the names of youkai whom his grandmother, Reiko Natsume, has sealed in contracts. These encounters allow Natsume to better understand the youkai, Reiko, and himself. 

The Book of Friends is a powerful tool that can be used to control youkai; it is sought after by both youkai and exorcists alike. Natsume just wants to live out his daily life in peace but is constantly disrupted by these experiences. If he is to end this torment, Natsume must explore more about the book and the world of exorcism, as well as begin to open his heart to those who can help him.