C1443 Yin Yang Inversion Needle

Yin-Yang infusion needle?

Everyone was confused, but Guang Yi was shocked and his breathing became rapid, "But the divine needle that can nourish the Meridian and reverse Yin and Yang?"

He had once read about the Yin Yang Inversion Needle in the ancient books of the Poison Medicine Sect, but he had never been able to find the whereabouts of this needle technique