Yuan Ming's gaze shifted from the mid-grade spirit stone in the bald man's hand to the two black jade slabs. He paused slightly, looking somewhat puzzled.

"Young friend, is this your first time trading runes?" The thin old man asked tentatively.

"Cough, indeed, I have not ventured into this area before." Yuan Ming coughed lightly, speaking with a hint of embarrassment.

"Hehe, no worries, everyone has their first time. This is a Rune Jade Slab, specifically used to record runes. It can record the process of a rune's initial development for future reference. You just need to gather a bit of mana at your fingertip and sketch the rune on it." The thin old man chuckled, giving Yuan Ming an encouraging look. However, he was secretly delighted, having already pegged Yuan Ming as a prodigal son secretly selling his family's rare runes.