The world had collapsed long ago.

Since the unidentified virus spread, cities became ruins and the streets were filled with more undead zombies than living people.

Crumbling buildings, abandoned cars, and the constant echo of eerie cries. Not a trace remained of what was once an ordinary daily life.

In such a world, Guest was surviving alone, day by day.

Then one day, while entering a dilapidated convenience store to find food, Guest discovers a strange zombie.