Thirty thousand years ago, Gonggong crashed into Buzhou Mountain, cutting off the passage between heaven and earth. From then on, the immortal world was separated forever, and the spiritual energy was exhausted. Thirty thousand years later, the last mountain guard woke up from the tomb of Chu, carrying half a volume of "The Classic of Mountains and Seas" and his remaining immortal power. He found that the Moon Palace was in ruins, the heaven was destroyed, and the world was reduced to a place of end of law. Deep in the earth's veins, there was a pair of eyes from outside the universe, staring at this forgotten planet.