Midnight Occult Civil Servants (真夜中のオカルト公務員, Mayonaka no Okaruto Kōmuin) seventh volume.
The Vampire Case which entangled both the Nocturnal Staffs and the police, what kind of ending will it have? One day, Arata was invited to the amusement park with Suzuka, the Zashiki-warashi, by Kanoichi Akane however it's Arata's mortal enemy, Kanoichi Satoru who appeared?!
Characters Appeared in Order
Anothers Appeared in Order