C288 Ruins Again

"Are you sure you didn't use any Spiritual Forces just now?" Liu Rui floated around Ning Xiao and asked in disbelief.

"Really, really useless. " Ning Xiao had already answered Liu Rui this way more than ten times.

At this moment, there was a large pile of gravel beside him.

Earlier, he casually crushed a stone to verify his current physical strength. Then