K-9: Public Security Bureau, Division 9 – Special Abilities Countermeasure (K-9 警視庁公安部公安第9課異能対策係, K-9: Keishichō Kōanbu Kōan Dai 9-ka Inō Taisaku-gakari) is a Japanese manga series written and illustrated by Tetsuya Okuyama. It began serialization on Kodansha‘s Magazine Pocket manga service in April 2025.

The series is centered around a supernatural phenomenon that manifests when a crime is committed called “Sin”. Experienced detective Ren Hizuki, who has previously tackled cases involving “Sin” as part of the Investigation Division 1, has been transferred to the newly established Public Security Bureau, Division 9; pairing with the cowardly, but mysterious Yushiro Oboro in order to tackle cases involving “Sin”.

Written and illustrated by Tetsuya Okuyama, K-9: Public Security Bureau, Division 9 – Special Abilities Countermeasure began serialization on Kodansha‘s Magazine Pocket manga service on April 16, 2025. Its chapters have been collected in four tankōbon volumes as of February 2026.

The series’ chapters are published in English on Kodansha’s K Manga app.

The series was ranked seventh in the Nationwide Bookstore Employees’ Recommended Comics list of 2026.

K-9: Public Security Bureau, Division 9 – Special Abilities Countermeasure
First tankōbon volume cover, featuring Yushiro Oboro (left) and Ren Hizuki (right)
K-9 警視庁公安部公安第9課異能対策係 (K-9: Keishichō Kōanbu Kōan Dai 9-ka Inō Taisaku-gakari)
Genre	Action Crime Supernatural
Manga
Written by	Tetsuya Okuyama
Published by	Kodansha
English publisher	Kodansha
Imprint	Shōnen Magazine Comics
Magazine	Magazine Pocket
Original run	April 16, 2025 – present
Volumes	4