C161 Lianyun!

After a long pause, the red-haired elder turned to Heavenly River Master and asked in a deep voice, "Heavenly River Master, may I know who provided this pill formula?"

Hearing this, Heavenly River Master shook his head slightly and replied, "As fellow Pill Refining Great Masters, we both understand the rules in this regard."

The red-haired elder nodded emphatically and then left the plaza