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It is common practice throughout the ages to prosper and then decline. The ancient martial arts peaked and declined, while technology rose and reached its peak. But the doomsday changes ushered in! Heaven and earth were sealed again. In this era of chaos, geniuses emerged. A thousand years later, martial arts flourished again.

There is a green mountain, and there is an immortal. He left the green mountain twice. The first time he brought back a disciple, the second time he returned empty-handed... And the third time, he never came back, leaving behind a sword and a... Mountain guard!