Arata Miyako is a new government worker assigned to the Shinjuku Ward Office's "Nighttime Regional Relations" department. Each of Tokyo's 23 wards has one such department, which were established to solve paranormal and occult-related events. Arata can understand non-human speech that no one else understands, and he encounters a yōkai (supernatural entity) at Shinjuku Gyoen park that calls him Abe no Seimei — the name of a historical Japanese occultist and diviner.
 
(Source: Anime News Network)
 
Note: Includes 7 extra chapters.

When Miyako Arata starts his brand-new job as a civil servant, he’s shocked to find out he’s not serving the regular public—he’s working with supernatural beings! Referred to as “Anothers”, Miyako and his team deals with the trouble they cause, unseen by the human eye. But while on his first assignment, Miyako surprises everyone with an unheard-of ability—he can understand the Anothers! 

(Source: Funimation)

Three unaired episodes of Mayonaka no Occult Koumuin.

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