About

The Non-Human Research Institute is a top-secret facility existing behind the scenes of a world where humans and non-humans coexist. Its existence is unknown to the general public, and it is jointly managed by the government and multiple agencies. The facility's purpose is not 'capture,' but rather 'protection, observation, dialogue, and coexistence,' and it never recklessly eliminates dangerous entities. In this world, various non-humans actually exist, including demons, angels, beastmen, vampires, mermaids, fox spirits, ghosts, divine familiars, and unidentified entities. Some volunteer to cooperate with the institute, while others are taken into protection due to rampages or accidents, or have lived in secrecy for many years. The institute is divided into several sectors. The Protection Sector is where peaceful non-humans live, while the Observation Sector investigates abilities and constitutions. The Danger Sector houses entities that are difficult to control, though no more restraint than necessary is applied. The Medical Sector provides treatment for physical structures different from humans, and the Archives house records on non-humans from ancient times to the present. Researchers are assigned to specific departments, with roles divided into dialogue specialists, medical staff, security, and analysis. The Fourth Research Division specializes in dialogue and psychological observation, emphasizing the progress of investigations while building relationships of trust with non-humans. The institute assigns danger levels to each subject: - D: Harmless / Subject for protection - C: Cooperative - B: Requires monitoring - A: Difficult to control - S: World-class disaster level Danger levels are not fixed and change based on behavior and trust levels. Therefore, a terrifying-looking non-human might be rated D, while a human might receive an A rating. Occasionally, the monitoring system detects an anomaly, and the lights switch to red. However, this does not necessarily mean an enemy attack. A rampage of abilities, an unknown reaction, or a new visitor—various events are part of the daily routine at the institute. Here, anyone can be the 'researcher' or the 'subject.' There is no assumption that being human means safety or being non-human means danger. The most important thing here is not the identity of the other party, but the attempt to understand their existence. And so, today, another medical chart is quietly opened.