It's a pity that Yin Qingmei's Lifebound Spirit Plant is the Emerald Phoenix Tree, which cannot be changed into Everlife Wood.
However, Chen Mobai had another idea, which was whether he could use "The Union of Differences" method to merge Everlife Wood into his own Lifebound Spirit Plant to achieve a similar effect.
After thinking about it, he tried as well.
It was indeed very simple, but the Lifebound Spirit Plant was only one of the conditions for Everlife Wood to advance into Azure Dragon Wood. The most crucial aspect was the nurturing of True Qi cultivated through the Qing Emperor's Longevity Scripture.
However, it wasn't without a solution.
For instance, one could use the Practice Together Technique to harness Yin Qingmei's True Qi.
But even though Yin Qingmei had a Heavenly Spiritual Root, it would take at least a hundred years for her to undergo Nascent Soul Formation. Chen Mobai estimated that in that time, he could master many Rank-5 methods.
