For Yu Sheng, the facility size limitation was easy to solve. There was plenty of room in the valley, along with a whole pile of "subsets" and "secondary spaces" connected to it. Setting aside a dedicated area for Eileen to handle production was effortless.
But the raw material limitation was a headache.
The materials needed for mass-produced puppets could mainly be divided into two categories: conventional and unconventional. The conventional materials were clay—or any moldable base material—and alchemical materials. There was as much of the former as anyone could want in the valley, while the latter could be bought from outside in any quantity. Neither was a problem. The unconventional materials were Spirit Fox Profound Iron for the puppet skeletons and spiritual blood as the "catalyst." The "supply" of both had always been an issue in the long term.
Relatively speaking, the Spirit Fox Profound Iron problem was not too serious. On one hand, as long as Huli had enough food, she could produce enough heavy-fusion products to match, and everyone knew how much Huli could eat when she let herself go. On the other hand, the amount actually used was not large. A small amount of Profound Iron in the skeleton did not really provide structural support for the puppets. It merely gave them "spiritual power," allowing them to fire Eileen Rays and granting them a certain degree of growth potential—such as learning sword flight from Uncle Yun.
Each puppet only needed a tiny amount of Spirit Fox Profound Iron. And if the supply truly ran short, Eileen could also produce a "non-spiritual version" without a Profound Iron skeleton. At worst, the mass-produced bodies would lose their long-range capabilities and growth potential, but they could still manipulate threads. Such mass-produced puppets could still serve as auxiliary units or "worker