Right now, Shinwonji is just a breeding ground for the Demon God, a physical vessel. With enough nutrients and time, ultimately, the true flesh of the Demon God will descend here.
In any case, the experiment failed.
But that was expected! The success rate of Ninja Demon Sealing isn't high anyway. Even the "Book of Mo Mountain Human Remodeling" says that the success rate of elevating mortals to strong ones is only fifty percent. In other words, if it doesn't succeed, they die trying...
But no worries! Recycling trash is Li Pan's specialty!
Given the fifty percent chance of dying trying, Mo Mountain certainly has a relevant processing method.
Ta-da! The "Mo Mountain Monster Cuisine Tome"!
After all, culinary skills—not quite—methods of processing various demon and ghost ingredients—are also the basis of pill refinement, a compulsory course for Qi Refinement Masters.