"What a pity, what a pity!" Wang Dacheng sighed repeatedly, as if he felt sorry for the JiuBao Kidney-Tonifying Pill of the Zhang family.

Then he said, "Doctor Zhang, I have an idea. Can you sell me this incomplete prescription of your family?"

"I can't." Zhang Guoliang quickly shook his head and said, "My grandfather left a teaching. This prescription can't be spread or used."

Wang Dacheng said, "Doctor Zhang, it's useless for you to keep such an ...