[Machine Translation] Natsume, Tanuma, and Tagei go to an inn in a neighboring city to see an exhibition on yokai. Due to sudden bad weather, they end up staying at the inn, but there is a legend that yokai sometimes stay there as well...? And what is the origin of "Book of Friends" finally told! Includes two special editions! Ayakashi kyodan vol. 22! Published in September 2017.