Against the backdrop of the fictional desert town in 1955, a "Young Star Observer/Space Youth League" conference aimed at bringing together students and parents across the country and promoting friendship and academic competition is preparing to embark on its exciting itinerary as planned.However, the sudden global incident completely disrupted all this and pushed the originally orderly schedule into chaos and unknown.This accident not only changed the fate of the conference, but also quietly opened the prelude to the changes of the times.