Retailer Rakuten Books posted the cover of the May issue of Hakusensha's LaLa magazine (seen right) on Friday. The cover reveals that the anime film for Yuki Midorikawa's Natsume's Book of Friends (Natsume Yūjin-Chō) manga will premiere on September 29 in Japan.

The film's official website previously revealed that voice actors Hiroshi Kamiya and Kazuhiko Inoue will return to play Takashi Natsume and Nyanko-sensei, respectively. Animation studio Shuka returns from the television anime's fifth and sixth seasons to animate the film.

The anime seasons and Midorikawa's original manga revolve around Natsume, a boy who has been able to see yōkai since he was little. Unfortunately, humans shun him, and there is not much fondness between him and yōkai either. One day, he inherits a Yūjin-Chō ("Book of Friends") from his grandmother. The book is actually full of contracts that his grandmother made to trap yōkai. As one yōkai after another shows up, Natsume tries to release or help them — even while many of them seek vengeance on him.

Natsume Yūjin-Chō Roku, the sixth anime season, aired for 11 episodes starting last April. Crunchyroll streamed the series as it aired. The anime's fourth and fifth home video releases bundled two new original video anime (OVA) episodes in September and October. Crunchyroll is streaming both OVAs.

Crunchyroll is also streaming the previous five seasons of the anime. Viz Media is releasing Midorikawa's original manga in English.