While Lu Feng and the other two headed for the Heaven Night Sword Sect.
Within Beast Valley.
Tang Yuan stared in astonishment at the Extremely Yin Beast Core Shen Tu Jiangshan had suddenly delivered, his eyes brimming with disbelief.
He had never imagined that the Extremely Yin Beast Core he desperately needed would fall into his hands so easily.
Seeing Tang Yuan suppressing his excitement, Shen Tu Jiangshan coughed and said, "Don't celebrate too soon. This Extremely Yin Beast Core was obtained decades ago. Much of its potency has been depleted by now, so it may not meet your needs for refinement."
Tang Yuan accepted the beast core and secretly sensed it. "It's alright. The loss isn't severe. It still contains around sixty to seventy percent of its energy."
Shen Tu Jiangshan frowned. "How can that remaining sixty to seventy percent maintain balance with the Yi Huo Yang Dou beast core you refined at full potency? Disorder between yin and yang qi is a great taboo in cultivation."
Tang Yuan's face reddened as he glanced at Fu Qingqing beside him.
Fu Qingqing said proudly, "This young lady will help him maintain the balance for the depleted portion."
In terms of Extremely Yin Energy alone, the portion of origin energy within her was no weaker than the beast core's power. Using the momentum of soul union to nourish Tang Yuan's cultivation was more than sufficient; to a certain extent, its effect was even considerably better than the Extremely Yin Beast Core.
Once Shen Tu Jiangshan understood, he smiled with gratification.
Tang Yuan asked with concern, "Uncle Shen Tu, where did this Extremely Yin Beast Core come from?"
He wondered whether, like Yi Huo Yang Dou, it had been accompanied by Extreme Yang Qi born between heaven and earth. If so, he