My Refuge in the End of the World

The world has become apocalyptic, and unknown monsters are wandering around on the ground. In order to avoid dangerous monsters, humans began to build shelters and use them to avoid monsters. As time went by, humans began to return to the earth in order to survive. The era of chaos came, the number of humans began to decrease, and wanderers and bandits began to appear... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.