C315 It's a Great Medicine

When Lin Nan arrived at the Fuloong Mountain's Spirit Cave, Ping Yizhen and Fatty Wu were already waiting there.

"Mr. Lin!"

Both of them greeted him respectfully.

Lin Nan walked into the spirit cave and went straight to the point. "I need to stay in the cave for some time to refine medicine. During this period of time... no one can disturb me