Amazon’s description of the 13th volume of Yōko Tamotsu’s Mayonaka no Occult Kōmuin (Midnight Occult Civil Servants) manga lists that the manga is entering its final arc with the volume.
Kadokawa published the manga’s 12th volume with an original anime DVD on November 22.
The manga also inspired a novelization by Masumi Suzuki that the Kadokawa Horror Bunko label published in July 2018.
The manga inspired a television anime series that premiered in April 2019.