At the Beginning, I Will Start with Copper Coins Passed Down from My Ancestors, and I Will Guard the Fireworks in the World.

In an old house in Fengping, an ancestral copper coin plunged Chen Du into a hidden world he had never known before. Ancient towns, universities, dark markets, ancient caves in mountains and forests... Behind each seemingly accidental incident, they all point to the same truth: the human world is not the only territory, and evil outside the territory always peeks at the boundary between the two realms. The Chen family has been guarding it for generations, and the Shen family is a wealthy family in the open and a talisman in secret. When the copper coin illuminated its three levels of origin, Chen Du finally understood that what he wanted to guard was never some shocking hegemony, but the smoke from the streets, the old friends under the lamps, and the lights of thousands of families. A copper coin calms the delusional mind, balances the road, and guards the world.