C1970 Secret realm(9)

"I mean, what do you know about the rules now?" Dugu Hong said very patiently. At this moment, Yun Xiao was completely stupefied. He simply could not believe that this guy could comprehend the rules in such a short amount of time. One had to know that he hadn't been able to comprehend the meaning of the rules for so many years. He even read a lot of books. The book also talked about the rules