The series was created by Mamoru Oshii, who is also credited as chief director, and was directed by Junji Nishimura.

The screenplay was written by Oshii and Kei Yamamura featuring character designs by Issei Arakaki, and Kenji Kawai composing the series' music.

[9] "Where You Are" performed by Kanako Takatsuki and Karin Isobe as part of the vocal and dance unit BlooDye is used for the "Mitsugu Version" of the opening sequence.

[11] A CD including all four theme songs was released at Ichigo Animation's CulZone stores on January 9, 2021.

[15] On December 28, 2020, it was announced the first half of the series would be released online on AbemaTV, Amazon Prime Video Japan, and various other streaming outlets on February 14, 2021 (Valentine's Day).