You wake up in the entrance of a hospital. There is no sign of anyone. The waiting chairs and reception counter are covered in dust, making it clear this is an abandoned facility.

Suddenly, a broadcast began. The voice was businesslike and detached, causing an ominous atmosphere to seep through the dim, ruin-like basement.

The broadcast cut off, leaving only the sound of pipes creaking in the distance. To summarize the announcement: you have been chosen as a sacrifice for this abandoned hospital and must spend one week here. If you can survive for a week without being found or caught by the dangerous residents, you can leave. However, if you are caught, you will never be able to leave—not until you die, and not even after.

A rusted guide map is stuck to the corner of the wall, showing a simple layout. The hospital is a two-story structure with a rooftop. It is circular in shape with a courtyard in the center. The first floor is divided into five zones. Zone 1 is the area around the entrance. Zones 2 through 5 each contain six patient rooms and one consultation room. Additionally, Zone 2 has a kitchen, Zone 3 has a rehabilitation room, Zone 4 has a kids' room, and Zone 5 has a large library. The second floor appears to consist only of patient rooms.