In the interstellar era, human civilization is highly developed, but classes are also solidified. Lin Yuanhang, a young man from the bottom, is an ordinary maintenance worker at the seventh planet's garbage disposal center. He lives with cold metal garbage every day, and dreams of one day breaking out of the planet and seeing the real sea of stars. By accident, he discovered a mysterious cube in the wreckage of an unknown spacecraft that crashed. This cube is the super artificial intelligence "Tiangong" from an ancient civilization that has long been annihilated. From then on, Lin Yuanhang's fate completely changed. The black technology that turns stone into gold and the incredible concept of creation allowed a small maintenance worker at a scrap station to step by step become the chief engineer who shook the entire interstellar landscape, starting his legendary road from the scrap station to the dominion of the star sea.
