130 years ago.. In the murim, there was a group called "silent night".
They created choas in the world.
The world was consumed in war.
Countless peoples died and were robbed.
As the damage grew exponentially, murim masters came together and formed " heavenly alliance".
They then formed a sect called "northern heavenly sect" to fight against the silent night.
For four generation the sect fought against the silent night.
And the silent nights eventually vanished.