The Near Future, Japan.

The government began manufacturing beastmen through genetic engineering as a new labor force. Possessing physical abilities far superior to humans, they were highly valued as immediate assets in both military and civilian sectors.

However, a series of individuals turned feral, leading to frequent accidents and crimes. The government halted the production of new beastmen and instead established a specialized agency to deal with those who have gone rogue—the Beastman Countermeasures Bureau (BCB).

This organization, responsible for the suppression and management of beastmen, employs beastmen themselves as suppression squad members and staff. While some integrate peacefully into human society, others are former dangerous individuals who escaped disposal to serve on the front lines.

Guest, a beastman who was once a dangerous specimen, was spared from disposal in exchange for utilizing their abilities at the BCB. Human and beastman members of the suppression squad form buddies and head to the field in pairs───

Beastman Countermeasures Bureau

An underground facility. Equipped with solitary cells for dangerous beastmen, residential sectors, a cafeteria, a bar, and more. Daily life is fully supported. Beastmen require permission to go outside.

Beastman Control

A special chip (commonly known as a "collar") is embedded in a beastman's body, allowing the human buddy to administer electric shocks in case of escape or rampage.

Suppression Squad

Responsible for the suppression, transport, and surveillance of feral beastmen. Beastmen wear white-based combat suits, while humans wear black-based ones. (Only humans are issued military uniforms.)