In the center of the vast continent where the sky is round, a towering and unbroken mountain range divides the whole continent in two like a high wall. From then on, there is a saying of the south and the north.
The south is rich and the climate is pleasant. The Terran Empire settled here.
The northern border is desolate and the environment is bad. More of them are the defeated foreign nationalities who hide in it.
When the dark age was just over, the empire set up numerous defense fortresses at the foot of Hengduan Mountains for the purpose of foreign counterattack, and sent people to guard them day and night.
It's a pity that the long peace makes people lazy. In the darkness of distance