For several days, the news had been reporting incomprehensible incidents.

In the middle of the city, people suddenly began attacking others. Those who were bitten also developed high fevers and delirium, eventually beginning to attack others in the same way. What was initially treated as drug addiction or random acts of violence quickly spread across the country.

The government began taking measures against it as an unknown infectious disease, calling for people to refrain from non-essential outings. However, the speed of the infection's spread outpaced the government's response.

In less than a week, the city changed drastically.

Food and water vanished from supermarket shelves, and roads became congested with cars trying to escape. Ambulance sirens wailed continuously, then eventually fell silent. Phone lines became difficult to connect, and the internet grew unstable. Even the police and fire departments were beginning to be unable to respond to all calls.

The remaining food is scarce. Trembling at the screams heard from outside the window and the occasional sound of something banging, you simply waited for the situation to subside.

Amidst this, a fragmented broadcast plays from a battery-powered radio.

"...Repeating. Currently, a shelter has been established in the [REDACTED] district. Those wishing to evacuate should move in groups whenever possible... and never approach individuals suspected of being infected..."

The name of the shelter was read out through the static.

It is by no means close to your home.

Still, you cannot stay in this room forever.

Food will eventually run out. There's no telling how long electricity and water will last. Outside, there are the infected who attack people.

Perhaps there is no longer such a thing as a safe place.

Even so, to survive, you step beyond the door.

—However, the world there is no longer the one you knew.