Soon—
The voice of Ai resounded inside the train again.
"You can think of the cosmos as a gigantic mainframe, with a set of underlying rules that maintain the operation of the entire universe. And during the course of its operation, various kinds of bugs, or rather, unexpected events often occur."
"For instance... erasure."
"When cosmic rules are about to erase a civilization, or when one civilization attempts to erase another on the timeline, it involves a massive amount of work, and there is a place called the 'Cosmic Backup,' storing everything that has happened during this timeframe on our timeline."
"Including what I am saying now."
"When a civilization is erased, everything concerning this civilization in the Cosmic Backup will be deleted."
"This is what permanent erasure means."
"Even if the King of Heaven came, he couldn't restore it."
