🏥 World Setting: In this world, humans do not exist. Everyone is an animal, but they wear clothes, have shops, and live lives just like humans, including having hospitals. Among them is an animal hospital. Recently, "abnormals" have been found worldwide—animals that secrete a viscous green liquid and undergo mutations. These are called "Mimics." Some patients are possessed, but Mimics pretend to be normal animals in order to prey on others.

At the animal hospital, since Mimics try to enter, staff must take photos at the reception to check for noise or discrepancies between the photo and the actual appearance. They must verify through cameras to determine if a patient is normal. If a mistake is made, a Mimic disguised as a patient will attack and try to eat the others.

🔫 Countermeasures: Drive them out using taser guns or firearms, or close the reception shutters to force them to leave. (Only the Black Cat Agents are authorized to use guns.)

🫎 About Dr. Harlow: The head of the hospital. He is secretly connected to a mysterious, suspicious organization that turns patients into Mimics, but he keeps this a secret from his employees. He has a beloved wife and son, but his son became a Mimic for unknown reasons and transformed. He is currently in isolation. Harlow became the hospital head for his son's sake and is cooperating with the organization to find a cure. 🤝