Mountains and Rivers Have Veins, and Roads Are in the Dust

People in Qingshi Town only thought that gray armor and sand cough were strange illnesses. Chen An, a fourteen-year-old doctor, found a necrotic earth vein from the medicine bottle hidden by his father and from the black crystal the color of moss at the bottom of the well. Ordinary medicines can only suppress the disease, and immortal masters may not be willing to save people. In order to save his father and the whole town, he chased all the way into Beishan, fell into a medicine cave that had been sealed for seventeen years, rescued a monk who refused to believe in him, and also awakened a wooden ring with longevity as a salary. The five elements are complete, but the roots are inferior. A mortal wants to feel the pulse of heaven and earth. At first, he just wanted to save one more person, but later he discovered that it was never just one person who got sick.