C385 First Task

In the dorm the National Bureau of Special Ability had specially arranged for him, Duan Lingfei sat on his bed and began cultivating.

He was holding the Tapi Rock in his hand, and felt a cold and a hot air flowing out from it, flowing into his body in a steady stream.

As he thought about it, the two streams of air flowed towards his brain along the route marked out in < The Mud Ball Sutra >