The official website of the anime adaptations of NisiOisin's Monogatari novels announced on Thursday that NisiOisin's Koyomimonogatari short story collection will receive a short anime adaptation that will debut on the upcoming Koyomimonogatari app on iOS and Android devices on January 9.

The anime will update with a new episode every week, and new episodes will be available for free for a limited time on their debut date. The pop unit TrySail will perform the anime's theme song, titled "whiz." The song will debut on Saturday, where it will be used in a commercial for the currently running Owarimonogatari anime series. The song's CD single will be available on February 10.

In addition, the original Bakemonogatari series will rerun on Japanese television starting on January 2, and it will feature a commercial for Koyomimonogatari .

The Koyomimonogatari app itself is slated for release on iOS and Android devices on December 19. The app will feature a daily calendar with voiced comments.

Monogatari Series producer Atsuhiro Iwakami previously stated that the staff were already planning an anime adaptation of Koyomimonogatari , but clarified that because the novel's format is presented in much more numerous and shorter stories, he was still consulting chief director Akiyuki Simbo and SHAFT at the time on how to announce the anime.

NisiOisin published his Koyomimonogatari novel in May 2013. The novel contains twelve short stories set before Owarimonogatari .

The Owarimonogatari television anime premiered in Japan on October 3 with a one-hour special. Crunchyroll and Daisuki are both streaming the series as it airs.

The three-volume Owarimonogatari novel is part of the "final season" of the Monogatari Series . The first volume shipped with the stories "Ōgi Formula," "Sodachi Riddle," and "Sodachi Lost" in October 2013. The second volume shipped in January 2014 with the story "Shinobu Mail." The third volume shipped in April 2014.

The novel series' "final season" ended with Zoku Owarimonogatari last September, but it features a teaser for "Monogatari Series, Next Season Tsugimonogatari."

Vertical will publish the earlier Kizumonogatari novel on December 15. The novel is inspiring an anime film trilogy. The first film will open on January 8.

Aniplex of America is releasing the anime adaptations of the Monogatari Series in North America.

Source: MoCa News