Natsume's Book of Friends the Movie: Ephemeral Bond

Natsume's Book of Friends the Movie: Ephemeral Bond (劇場版 夏目友人帳 ～うつせみに結ぶ～) is a 2018 Japanese animated film based on the Yuki Midorikawa's manga and anime Natsume's Book of Friends. The film is produced by Shuka and directed by Hideki Itō under the chief direction of Takahiro Omori; with an original story written by Sadayuki Murai under Midorikawa's supervision. It was released in Japan on September 29, 2018.''

Plot
Natsume travels to a town where his exorcist grandmother Natsume Reiko stayed in for a bit, there he meets an acquaintance of hers. Meanwhile Nyanko-sensei follows some spirits into the woods and end up with a weird seed stuck on him that later becomes a spirit tree in Natsume's front yard.

Production
The cast of the television series also returned to reprise their roles. Uru to perform the film's music "Remember".

Release
The film was released in Japan on September 29, 2018. In Japan, the film was released on Blu-ray and DVD on May 29, 2019.

Aniplex of America released the film in North America, with a premiere at Anime NYC 2019 and a home video release on November 26, 2019.

Reception
Natsume's Book of Friends the Movie grossed $17,473,797 at the box office.