"The prescriptions of the upper realm are even more mysterious. It controls the medicinal properties in an even more strict way… However, the spiritual power of the elixirs isn't as good as the Core-Tempering Elixir I refined previously. What a strange situation!"
After Fang Jinyu studied the elixirs he bought, he was inevitably surprised by the result.
Fang Jinyu thought, "Isn't this the upper realm?!"
"Could it be... It's because of the spiritual energy of the upper realm... Is it too thin?" After thinking about it, Fang Jinyu could only think of this possibility. The spiritual energy was thin, so the medicinal properties of the spirit herbs were seriously insufficient.
However, Fang Jinyu felt it was still worth it to comprehend and cultivate such a mysterious and strict alchemy method.