His followers could even build Steel Guardians, but without large-scale industrialization, they were all hammered out blow by blow in tiny workshops.
How should one describe it?
Hand-crafting a Gundam from scratch.
If a genius on the level of Iron Man appeared, then everything could be hand-made; but if such a person disappeared, all the craftsmanship would be scrapped. Even with blueprints, other craftsmen still wouldn't be able to pull it off.
Airenicas had the schematics for the Supreme Golem in his hands, but he still couldn't make one.
The Secret Scripture this Witch Demon was truly interested in was called the "Golem Manual," a handbook that contained detailed manufacturing procedures for Mechanical Creatures such as Clay Golems, Flesh Golems, Steel Golems, Secret Silver Golems, Refined Gold Golems, Supreme Golems, and so on.
There were clues indicating that the Golem Manual was ultimately taken by the Divine Son of Baal—the Slaughter Divine Son.
