Reality is not a game; defeating monsters rarely drops equipment... but PK killing can indeed expose the whole set.
A large number of Foreign Domain stone men became the main spoils of this battle, but figuring out how to utilize them requires the work of professionals.
The Extraordinary Clans inevitably carry some "treasures," yet Intelligent creatures seem relatively weak in this regard. In contrast, those Magic Monster species that rely on innate talents can indeed "drop materials."
In fact, many of the auxiliary materials needed for the advancement of Extraordinary Occupations are specific Extraordinary Magic Plants and Demons, even necessitating a professional Magic Alchemist to mix and blend them.
Materials in each world are different, requiring professionals to conduct repeated tests.
For this reason, Magic Alchemists are better at analyzing the properties and uses of Extraordinary Materials compared to material science experts.
