Kemono Jihen (怪物事変) is a Japanese manga series written and illustrated by Sho Aimoto. It has been serialized in Shueisha's manga magazine Jump Square since December 2016, with its chapters collected in 24 volumes as of December 2025. An anime television series adaptation produced by Ajiado aired from January to March 2021.
Plot
In a remote mountain village, a series of mysterious incidents involving livestock corpses draws the attention of Kohachi Inugami, a detective from Tokyo who specializes in supernatural cases. While investigating, he meets a boy named Kabane, who is forced to work in the fields and is ostracized by the villagers, who treat him as if he is not human.
During the investigation, Inugami discovers that Kabane is actually a half-ghoul, abandoned by his parents and left to live in misery with relatives who treat him as a burden. After solving the case and exposing the supernatural cause behind the animal killings, Inugami takes Kabane back to Tokyo, where he runs a detective agency that handles cases involving creatures that exist alongside humans in secret.
In Tokyo, Kabane begins working at the agency alongside other boys who are like him, including Shiki, who has spider-like abilities, and Akira, who has powers related to snow and ice. As Kabane adjusts to his new life and forms bonds with his new companions, he also searches for clues about his missing parents.