master medicine, it couldn't be achieved overnight. Seeing Chen Ping was only in his early twenties, he could understand that he had some knowledge of medicine, but as for saying he was skilled, Ling...ly.He knew that as long as he saved Xiaolan, Chen Ping would owe Yishen Valley a favor. In that case, if he asked Chen Ping to help Yishen Valley refine medicine, Chen Ping wouldn't be able to refuse....