The science of talisman symbol-making had been developed substantially within the Great Yin, mainly in the area of formations and talisman paper. Originally, this study of symbols derived from Divine Weapons and Devil Blades was a subject based on imitation, and primarily dealt with replicating the symbols and formations engraved on those weapons to replicate their effects.
Even though their power was substantially weaker precisely because they were only replicas, the study of talismans had brought about many widespread improvements to everyday life among the upper class of the Great Yin.
Lu Sheng was quite intrigued. Ordinary citizens were usually not allowed into talisman stores, and the merchandise there was almost all just spare goods left over by the government and the three major sects. The talisman making instructions were even more scarce, usually only including the most rudimentary parts.