At this moment: The whole country follows me into another world

My name is Fang Ming, from Earth.
I never thought that one day I would become an emperor through time travel.
It never occurred to me that as the emperor, I would get a random door.
"Hello, Chief Assistant of the Cabinet?" Fang Ming sat on the dragon chair and dialed the phone.
"This time is the end of the world, I allow you to mobilize seven aircraft carriers!"
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The world of appearance: martial arts, doomsday, science fiction, fairy tales, fantasy, etc.......