Travel the world with the red alert system

College student Lin Xuan accidentally traveled through the ancient world, accidentally activated the red alarm system, and gradually opened a glorious era!
From establishing a modern town to a modern empire, and then leading the people of the world to resist the invasion of aliens, Lin Xuan led the system to gradually reveal the truth of the universe, and finally became a top-level technological civilization and reached the pinnacle.

Main characters: Lin Xuan, Bai Qian,

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