Northern Border, ever since the Alien Humanoids appeared.
All along the border, the government had already stopped manpower and relocated the nearby residents.
However, the reason for the relocation was not explicitly stated as due to the Alien Humanoids; as disasters occurred frequently nationwide, the reason for relocating the masses from the border became readily resolved.
Over a few months, those who needed to leave had left, and those who needed to be relocated had been relocated.
Yet, despite this, a portion of the people refused to leave their homes.
No amount of persuasion was effective, especially in the villages deeper into the mountains—it was even more so the case.
Around the Northern Border, there were many more mountains, taller and deeper than those below in City C.
Especially in the gullies within dozens of miles near the border, the government's personnel almost never managed to persuade these villagers.