C282 Thunder Source Body Tempering Art

"Thunder Source Body Tempering Art?" Ning Xiao's eyebrows jumped. He could feel that this was another huge pit. . .

"Why do you have such an expression? Do you know how precious this thing is?" Liu Rui glared at Ning Xiao unhappily, "This is an extreme body refining technique. It was something I found in a ruin when I was young! According to the records