The Primordial Wilderness Realm is connected to the modern city through a "rift in space and time." Lin Dong, a genius of alchemy from the Primordial Wilderness Realm, transmigrates to a modern city after a cultivation accident. Practicing medicine and helping people under the identity of an "Ancient Immortal Physician," he also uses resources from the Primordial Wilderness Realm to resolve crises in the city while secretly searching for a way back. The cultivation system comprises martial arts, alchemy, and formations. The central conflict revolves around a contest between ancient powerhouses behind the "rift in space and time."
