C427 Open Stone Door

"Who said that it would be a waste of time?" Ye Changsheng looked at Rao Qianqian and smiled. "Haven't you heard that it's man-made?"

"Eh?" Seeing that Ye Changsheng seemed to have something in his words, Rao Qianqian quickly composed herself and looked at him, "You mean that you have a way to open this stone door?"

"Nope." Ye Changsheng said in an extremely calm manner.

"Hey …" You