The Whole World Fell into an Era of Beasts

Novel Summary
Overnight, all the cities in the world were divided one by one, and came to a world of beasts.
Outside monsters are running, like a dog in the shape of a giant elephant, a giant in a mountain range, a bear that can tear the earth with only one hand, and a giant eagle with a wingspan that brings up a storm.
Human beings are shivering under the watch of monsters, and they are struggling to survive with their own initial beasts!
The global system is here!
The protection period of the main city opens in March!
After March, the lord-level monsters waiting outside the main city of Shanghai will open their fangs and tear human life into pieces!
But at this moment, Li Song realized that his system seemed to be different from others…
This world of beasts is also a bit similar to a certain game he played…
then.
After three months, the protection period ends!
When the lord-level monsters engulf the race to rush into the city and hunt them.
What appeared in front of it was the first lord-level beast of human society!
– Description from readMTL