
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 seven extra chapters.
Mayonaka no Occult Koumuin is a Japanese manga of 236,527 characters, with 10,108 unique words and 1,890 different kanji. Its difficulty rating on Jiten is hard, 3.2 out of 5. The full vocabulary list ranks all 10,108 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.