In 2136, a global energy war turned the earth into a radioactive wasteland, and the remaining humans retreated to underground shelters. The "Exploration Ark" built by the survivors using global resources only carried a few hundred elites into deep space, completely abandoning hundreds of millions of people at the bottom.
Lin Ye, a researcher at Yanhuang Shelter, jumped out of elite aerospace thinking and drew on the logic of "serial warships" to propose using abandoned aerospace debris in low-Earth orbit as raw materials to modularly splice a giant in-orbit human settlement fortress - Oasis Fortress. It does not pursue deep space voyages, but uses zero consumption of core strategic resources to create an interstellar survival springboard for ordinary people to escape from the wasteland. It is called the "Ship of Life" codenamed "Oasis Fortress"