The films were later recut into a 12-episode television series, which aired from January to March 2021.
[2] In May 2020, it was revealed the anime project would be a three-part theatrical film series.
It was also announced to be created by Mages and produced by Asahi Production, with direction by Takaharu Ozaki, scripts by Kazuyuki Fudeyasu, character designs by Yomi Sarachi, and music by Akio Dobashi.
[4] In November 2020, it was announced the film trilogy would be recut into a television series, which aired on TV Tokyo for 12 episodes from January 11 to March 30, 2021.
[6] A mobile game for the series was announced in August 2019 and released on March 1, 2021.