Yes, it was indeed Fluid Alchemy.

All the theories used, along with the spirit matter circuits, material interference methods, and spirit-refinement techniques, all came from the basics of Fluid Alchemy, or were extensions that combined it with modern alchemy.

Of course Ye Xian knew this. After all, Ji Jue had already submitted everything he knew. She had only skimmed through the sections on basic theory and applications, completely uninterested in the rest. Once she confirmed there were no hidden risks, she tossed it back to him and never paid it any further attention.

Just like that, simply by drawing analogies and only dabbling in it briefly, her understanding of it had already eclipsed Ji Jue’s. While Ji Jue was still absorbed in the fundamentals of Fluid Alchemy, Ye Xian had already begun cultivating the art in reverse.

If the essence of Fluid Alchemy was to elevate the intrinsic nature of a material and thereby enhance its form and vessel, then why couldn’t it be used the other way around? As long as one locks down the external form and constraints of a substance, then no matter how pure or powerful its inner essence becomes, wouldn’t it still have to submit to the limitations of its container?

When manifested outwardly, it would resemble a seal, using ordinary vessels to imprison and restrain spiritual entities. At this point, it could no longer be called Fluid Alchemy. Perhaps an entirely new school could be developed from it. Maybe it could be called... Solid Alchemy?

However, the grand path that seemed so full of promise to Ji Jue was, in Professor Ye’s eyes, utterly unworthy of further study.

“Did you see it clearly?” Ye Xian extended her hand and placed the hardened mercury bead in front of him.

Ji Jue pondered for a long time before...