chapter 206 500 million to treat a disease

"Miss Qiao, you just said, what is the name of the last medicinal ingredient?" Zheng Ranran suspected that she heard wrongly. After all, that kind of thing usually exists in legends. Who has seen it in real life? Never mind that I have seen it, I have rarely heard of it being mentioned. "It is recorded in the Classic of Mountains and Seas that to the north of Dragon Country, there is a large mountain. In the mountain there grows a rare grass that looks like yarrow, but is covered with...