Apocalyptic Exotic Land

In a foreign land at the end of the world, when your peaceful life is broken, it's like traveling through hell. You have no relatives and no worries. To live, I don't want to die. My only motivation is that I don't have the aura of the so-called protagonist and can only use my brain to persist in living. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.