Shen Nong Valley

From Jinlian's words, she found out that Yulong Sect Sect Master Wu Huanzi had colluded with outsiders to sell out his Divine Dragon Valley due to a lack of righteousness in heart.

In order to gain the rights to secretly train in the profound strength technique, although this technique could increase one's lifespan, the lifespan obtained from practicing this technique was forcibly snatched from others.

In other words, he would use someone else's lifespan to increase his or her lifespan. It was commonly known as borrowing one's life force.

In the past, the ancestor of the Divine Dragon Clan had found this technique by accident. However, when he found out that it was a technique he had borrowed to prolong his own life, he listed it as a forbidden technique within the valley and did not allow future generations to learn it.