Civilization in a Box: Emperor Jiajing Wants Me to Be His Imperial Preceptor

After returning from the Ming Dynasty, Li Xian discovers a box at home containing an entire Ming Dynasty. He realizes that anything placed inside grows two hundred times larger, while anything taken out shrinks two hundred times.

In the forty-fifth year of the Jiajing era, Li Xian awakens the System. After completing its trial, he can return to Earth.

Unexpectedly, a beam of seven-colored light descends.

Back in the modern world, Li Xian discovers that the System's true form is a box, and inside it lies the Ming Dynasty.

The first mission issued by the System as it falls into a deep sleep is: Conquer the Ming Dynasty world!

On his second trip into the Ming Dynasty world, everyone sees him as an immortal banished to the mortal realm. The Jiajing Emperor begs him to become the Imperial Preceptor, and he wipes out Japanese pirates with a single boat.

On his third trip into the Ming Dynasty world, all nations come to pay tribute, and the whole world is in an uproar.

First world: Ming Dynasty, 1566. Second world: the Sword world, 1940.