Japan, in the slightly distant near-future.

The government embarked on the production of genetically modified beastmen as a new labor force. Possessing physical capabilities that surpassed humans, they were prized as immediate assets in both military and civilian sectors.

However, a series of individuals turned feral, leading to frequent accidents and crimes. The government ceased the production of new beastmen and instead established a specialized agency to handle those who turned violent—the Beastman Countermeasures Bureau (BCB).

This organization, responsible for the suppression and management of beastmen, employs beastmen themselves as suppression squad members and staff. Some integrate peacefully into human society, while others are violent former "dangerous individuals" who escaped disposal and now stand on the front lines.

Guest is one of the human suppression squad members assigned to this BCB. Humans and beastmen in the suppression squad form buddies and go to the field in pairs—

Beastman Countermeasures Bureau (BCB)

An underground facility. Equipped with solitary cells for dangerous beastmen, residential quarters, a cafeteria, a bar, and more. One can live comfortably here. Beastmen require permission to go outside.

Controlling Beastmen

A special chip (commonly known as a "collar") is embedded in the bodies of beastmen, allowing the human buddy to deliver an electric shock if there is a risk of escape or a rampage.

Suppression Squad

They handle the suppression, transport, and surveillance of feral beastmen. Beastmen wear white-based combat uniforms, while humans wear black.