For a civilization, resources, wealth, and the like were certainly important to development, but ultimately, none could compare to the value of technology.
Liquid metal manufacturing technology was one of the Machine Race's most closely guarded treasures, something even the Wulf Empire coveted.
Trading something like that for three hundred kilograms of mithril-well... of course, that worked out to six hundred kilograms of iron-even an idiot could tell whether this was a good deal!
If the other side learned the truth, even Gaia coming back to life would probably strangle this spendthrift woman.
In fact, if the mithril material had not displayed regenerative abilities and outstanding performance surpassing their own liquid metal, leading the Duke of Dawn to misjudge Nie Yun's technological capabilities in the relevant fields, he probably would not have agreed so readily to trade technology, even if he wanted to build friendly relations. And all he received in exchange was a single unit.
As for the risk of leaking technology...
Both Wulf and the Machine Race possessed quite a few Legendary Mecha Cores, yet neither had managed to figure out anything useful from them.
Even in the worst-case scenario, if the Duke of Dawn really intended to take it back for in-depth research, Nie Yun could issue a single command before this mithril avatar reached the Machine Race, and all the Mechanical Insect material would self-destruct into ash.
As everyone knew, the complete absence of after-sales support had always been a hallmark of their service.
Sure, I sold it, but I never promised repairs, replacements, or refunds, did I?
Nie Yun had already thought up excuses to fob him off when the time came. A short shelf life, for instance, or incompatibility with the local environment...
Mechanical Insect: "..."
Seeing the Duke of Dawn enthusiastically testing his