Interstellar Ruins People

In the distant future, human civilization suddenly collapsed after reaching its peak. The reason is that the core of the entire interstellar network - the "star core" - has mysteriously disappeared. The star core is not only an energy source, but also a backup library for all human consciousness data. Its disappearance led to the interruption of connections between interstellar colonial planets, the failure of countless advanced technologies, and the return of human civilization to a level similar to the Middle Ages, leaving only vague memories of the "Golden Age" and "Sky Fire" in legends.