During the famine period of the 1970s, Zhao Tiezhu went down to the Suolong Mountain Cellar—which suppresses a black dragon—to retrieve a cornbread dropped into the cellar. He integrated with the black dragon's dragon ball and awakened abilities such as manipulating earth energy and water systems. Relying on his supernatural powers to hunt and gather mushrooms to improve his family's food and clothing, the spiritual monkey head mushrooms produced fungal beads that sparked competition from all sides. To hide his secret, he used this as a chip to win the barren ditch behind the mountain and set up a collective mountain goods testing station as a cover. During their work together, he gradually developed feelings for cafeteria clerk Shen Yuru, and they even pretended to be a couple to cope with marriage pressure. Hunting rare beasts deep in the mountains, the testing station produced high-quality ingredients. Returning to the dragon cellar, Zhao Tiezhu gained the inheritance of the true dragon's remnant soul, learned that he could refine the earth energy of mountains and rivers, and embarked on the path of dragon-transformation cultivation.