It is said that tens of thousands of years ago, the boundary between righteousness and evil was not so clear; instead, there were several tribes.
These tribes fought against each other to vie for the legitimacy of the world.
These battles lasted for several thousand years.
Eventually, they agreed to a final showdown near Heaven's Spine.
And Heaven's Spine was where Earth and Heaven connected.
At that time, reaching Heaven was very convenient; one could simply climb Heaven's Spine to reach the Celestial Realm.
And for those in the Celestial Realm, descending to the mortal world was also quite convenient.
The final showdown agreed upon by those tribes lasted a whole ten thousand years. In the end, due to the breaking of Heaven's Spine, they were forced to end the strife. After Heaven's Spine broke, only two tribes remained; the others were all wiped out in that ten-thousand-year-long war.
