A modern man, a fifty-year-old businessman who had gone bankrupt after living most of his life through countless ups and downs, died full of bitterness in a dilapidated rented room. His soul, carrying modern knowledge and memories, transmigrated into the body of an eighteen-year-old shepherd from the lowest ranks of the Sirius Tribe in another world. A very different Li Mo starts at the bottom of the tribe, using modern knowledge to transform it and change his fate. He leads his people to expand and conquer, unites the continent, and builds an immortal civilization.