The material inside the key is actually made of Fen Yue Gold!
Fen Yue Gold is a very precious artifact refining material, extremely hard, and without the strength of a fourth-order refiner, it's impossible to transform this material into something else.
But this key in front of me, it's entirely made from this Fen Yue Gold, which means this seemingly inconspicuous key is actually crafted by a fourth-order refiner!
Fourth-order refiners are all martial sovereign-level experts.
This shows the preciousness of the material.
Moreover, a key that could make a fourth-order refiner expend their energy to craft it, what it unlocks is likely not something simple either.
Although Qiu er was surprised in her heart, her face didn't reveal the slightest hint, and she said calmly, "You say this thing is gold, so it's gold? Besides, do you think gold is worth much to me?"
