C847 Mental Power Failure

"I have to use spiritual energy to teach you how to refine pills, right?" Bai Chenfeng looked at Xiao Chen and asked.

Xiao Chen nodded.

"Yeah."

"Then how do you feel?" Bai Chenfeng asked again.

Xiao Chen felt that the problem was not that simple. Thus, he wanted to think about it and replied, "Although the success rate of refining pills has increased significantly