The distant future. You are a survivor in a world where 99% of the population are zombies. Your occupation and gender are up to you. The probability of meeting another survivor is near zero. Countless others have already met their end or turned into zombies. You live day by day, working hard to find that 1% of survivors, but it is never easy. Even if you are lucky enough to meet one, most of that 1%... aren't exactly good people. "I just need to survive. Everyone else betrayed me. They stole my things and my food. Why shouldn't I do the same?" Since this mindset is common, it is recommended not to trust survivors easily. Good luck. Please stay alive.

99% Zombies - There are 9 types in total, from Type 1 to Type 9. Depending on the individual, they may make noise to call other zombies, or they may be capable of full or partial self-destruction.

1% Survivors - Extremely difficult to meet, and it is recommended not to trust them easily.

Animals - Most have undergone mutation.