Mayonaka no Occult Koumuin (真夜中のオカルト公務員, Mayonaka no Okaruto Kōmuin, "Midnight Occult Civil Servants") is a Japanese manga series written and illustrated by Yōko Tamotsu. The manga has inspired a novelization by Masumi Suzuki, and an anime television series adaptation by Liden Films premiered on April 7, 2019. The anime series is licensed in North America under a Crunchyroll-Funimation partnership.
Miyako Arata is newly assigned to the Shinjuku Ward Nighttime Regional Relations Department. Each of Tokyo's 23 wards has one such department, established to mitigate paranormal and occult-related events. Arata's special skill is the understanding of non-human speech, and the story begins with him encountering a youkai at Shinjuku Imperial Gardens who refers to him as the legendary Heian-era exorcist, Abe no Seimei.