C780 Mysterious old man

Fifteen years was a very short period of time compared to the thousand year lifespan of an Acupoint Charging Realm cultivator, but to an ordinary person, it was only a sixth or more of their life force.

In fifteen years, there had not been a single cultivator, not even a small animal, in the valley.

Just as Chen Yang was about to leave, a knock on the door sounded out