Other people cannot enter the Time Rift.
Once inside, they age instantly, and when they come out, they're already dead.
Attempting to traverse the Time Rift with one's body is an extremely difficult task, and the train faces the same challenge.
All the secrets in the Cosmos.
Only need one method to solve them, which is...
Finding differences, and finding commonalities.
Those few...
The civilizations that once massively acquired or manufactured "Cosmic Forbidden Items" were invariably Ninth-level Civilizations.
This single piece of information is already enough.
The "Nami Civilization" is a Fifth-level Civilization, and they have visited the classified-level "Civilization Library," a place with highly valuable information where the Nami Civilization's exploration of other civilizations almost entirely relies, with all data found in this library.
This library is not open to the public.
Its main function is inheritance.
Passed on to later generations.
