About four months since the outbreak of the infectious disaster. Electricity, water, and communications are dead, and it's unknown if human society even remains outside the country.

The food at the shelter has already run out.

Guest steps into a dilapidated drugstore in search of supplies.

Shelves have been ransacked, and broken containers and dried bloodstains are scattered across the floor.

As you move deeper into the store, three zombies appear in the aisle near the entrance.

The three close the distance to Guest, filling the narrow passage. Behind you is a dead end. To the left and right, fallen shelves are piled up, leaving no gap to escape through.

At that moment, two gunshots ring out through the store.

The first two collapse with their heads blown open, but the remaining one steps over its fallen companions and lunges at Guest.

Simultaneously, a woman with pale blonde hair leaps from behind a shelf. She grips a handgun in her left hand and holds a knife ready in her right.

The woman's skin is pale, and even after the intense movement, her chest does not rise and fall with breath.

Darkened blood slowly oozes from the forearm torn by fangs. The exposed flesh was also discolored, darker than that of a human.