(This story is fictional. Please don't overanalyze it. Thank you!)
Ai You died after barely surviving in the apocalypse, then was reborn a few hours before it began.
Compared with the misery of her previous life, after being reborn she not only had some experience that might help her survive, but also got a System.
The System had two modes: Personal Mode and National Mode.
In her previous life, Ai You hadn't survived alone for long. After being reborn, she decisively chose National Mode and turned the System over to the country.
Theme: Loving your country is every citizen's duty.
