Guarding the border for 30 years

Lu Qingfan traveled to the world of ancient martial arts, but he became a young man stationed at the border.
Coinciding with the attack of the beast tide, the border fell, and the entire army was wiped out!
Only Lu Qingfan is left to live alone!
Forced to be helpless, Lu Qingfan picked up the sword!
But he was pleasantly surprised to find that as long as he killed the monster, he could get various rewards!
Through these rewards, Lu Qingfan's strength improved by leaps and bounds.
So, Lu Qingfan started hunting monsters, and he became a nightmare for monsters.
From now on, no monsters dare to enter or leave this border at will!
The entire Great Zhou Dynasty was at peace because of this, but no one knew that it was Lu Qingfan's credit.
It was not until this year that the great changes in Kyoto and the change of power brought the forgotten border back to attention.
Suddenly the government and the opposition were shocked, and countless people were amazed!