Passing down the Great Divine Technique of Inverted Yin and Yang to Xu Erniu was a decision that Zhang Chen had long made in his heart.
Xu Erniu practiced the Alchemy Dao and was manipulated by the Longevity Ancestor, becoming a Grass Returning Pill. If Zhang Chen were to teach Xu Erniu the Great Divine Technique of Inverted Yin and Yang, and Xu Erniu succeeded in cultivating it, could she reverse the properties of the Grass Returning Pill within her body?
There was a hint of anticipation in Zhang Chen's eyes. The path of the Grass Returning Pill was not easy. This Grass Returning Pill was hardly any less valuable than Longevity Flesh, and many had coveted it, leading to constant peril along the way. A slight misstep could result in death and the end of one's cultivation. Zhang Chen did not want Xu Erniu to tread this path. If she could invert Yin and Yang to alter the inherent nature of the Grass Returning Pill, and forge a new path for it, wouldn't that break the shackles?
