Mao Ziyuan traveled to the world of cultivation and became a handyman. He only had three years left to live, but he was bound to the "Mountain and Sea Immortality System". While others try to seize the treasure, he survives, while others try their best to live in seclusion. Relying on modern knowledge to reduce dimensionality, transport steel and cement, infrared monitoring, and high-temperature electric furnaces from the earth to build an absolutely safe trading city in the world of immortality. Unlocking everything in "The Classic of Mountains and Seas", cultivating the remaining nine needles, forging the Golden Sword, and seizing the Kun Thunder Law - when the catastrophe of destruction came, the man who had been hiding for a lifetime finally came out, and the whole continent discovered that he was still alive.
