C1795 Rough Plan

Yun Hao and Bo Yunyan had returned to the Hundred-herb Hall.

Seeing Yun Hao had returned, the three disciples went up to him respectfully and greeted him, as if they were afraid that Yun Hao would leave.

There was nothing Yun Hao could do about it, the secret technique to refine pills was just too precious. The more a person knew about the way of medicine