Ning Cheng was stunned. He thought that Qu Wujian would be here for a few decades at most. Hearing Qu Wujian say that he had been here for tens of thousands of years, Ning Cheng even forgot the purpose of his question and subconsciously said, over tens of thousands of years, Daoist Qu should have collected a large amount of Nirvana Dragon Scale Sand, right? Still care about a dozen pieces of Nirvana Dragon Scale Sand?...