C130 Father and Daughter Communicate

"Treasure Appraisal Convention, are they gambling on stones?"

Bai Qingfeng asked curiously.

He had never heard of anything like the Treasure Appraisal Convention, so he could only think in the direction of gambling on stones.

"That's more or less what I meant, but the stone gambling alone isn't strict enough."

Nangong Wenfeng immediately started to explain, "This time