Xin Lin examined closely and confirmed that the knives at the waists of the grandfather and grandson were indeed kitchen knives. The blades were about half a finger wide, not made from ordinary gray iron but crafted from a special mineral called Golden Stone.
This type of mineral knife, Xin Lin had previously seen on Master Ji, but it was merely a Bone Cutting Knife.
It was just a small one, and Master Ji only used it for dealing with third-level or above Xuan Spirit Beasts, cherishing it greatly in everyday life.
It's said that this knife can cut a hair with the slightest touch. Moreover, when peeling and deboning, it doesn't leave a trace of blood.
When Master Ji passed away, the owner decided to bury him with that Golden Stone Blade.
At that time, Master Ji once mentioned that a Golden Stone Blade was particularly hard to craft and quite valuable.
Only Spiritual Delicacy Masters above the master level could own a Golden Stone Blade.
