The universe is nested layer by layer, and each layer has independent physical laws. The most disparate dimensional gap is the vastly different speed of time - a snap of the fingers at the upper level is equivalent to the rise and fall of the civilization at the lower level for hundreds of millions of years.
After millions of years of observation and deduction, human beings have torn apart the cruel truth from countless abnormal data judged to be instrument errors: the current level of the universe is not an eternal territory, has a fixed decay cycle, and is the destined end of annihilation and zeroing.
At a time when civilization is on the verge of survival, the two core institutions are in complete confrontation. The Institute of Deep Space Theory has devoted all its computing power to prove that cross-layer escape is the only way for civilization to break the situation. It is determined to tear apart the barriers of space and time and break free from the cage of the universe. The Civilization Survival Council has issued the highest level of warning: lower-level civilizations carrying unique physical rules break through the wall and escape. For the upper-level universe, they are a rule virus that is difficult to eliminate. Any dimensional disturbance may trigger the upper-level world-destroying cleanup mechanism.
After depleting resources across the region and failing several times to break through the wall, mankind has exhausted its civilizational heritage to create the only cross-border carrier, which can only accommodate 600 people to continue the fire of civilization. After a thrilling breakthrough of the shell barrier, mankind unexpectedly discovered the truth: the speed of time in the upper universe is far beyond imagination, and all human activities are as short-lived as dust, unable to trigger upper-layer early warning and dimensional immune cleaning, and can enter an excellent invisibility window period.
With abundant resources and stable order, this place can be called a desperate paradise, but it is also a gentle cage hiding murderous intent. Silent dormancy will eventually die along with the mother universe, and breaking through the wall and expanding will inevitably expose traces and lead to liquidation. A long-term cross-dimensional game that risks the survival of humankind begins.