The protagonist, Cen Yi, makes a living by helping people explore graves and dig up soil. Once, he digs out half a piece of bronze fragments engraved with strange patterns in a barren mountain. From then on, his ordinary life completely goes astray.
The fragments became hot at night, and every inch of land he dug hid strange things: he dug up old graves and unearthed moving pottery figurines, dug deep pools and unearthed bronze coffins wrapped in chains, and even under the foundations of abandoned construction sites on the outskirts of the city, there were huge black iron doors that could swallow the moonlight.
What's even more bizarre is that every time he digs into the ground and finds blood, the lines on the fragments become brighter. Cen Yi can gradually see the "xuanhuang Qi" that ordinary people cannot see - it is the original power of heaven and earth recorded in ancient books, hidden in secret tombs, deep-sea shipwrecks and even deep in the earth's veins throughout the ages.
Some people say that he is digging for the inheritance of his ancestors, while others are coveting the secret of longevity behind Xuanhuang Qi, and pursuits and solicitations follow one after another. Only when Cen Yi stood in front of the bottomless cave with a shovel in hand did he realize that what he was digging was never a treasure, but an ancient secret that could overturn the world, and all of this had just begun.
