Great Tang: Little Sizi and the City of the Future

Li Kuan, reborn from another, technologically advanced world, finds himself in the golden age of the Tang Dynasty.

With the backing of a highly advanced civilization, Li Kuan builds a city of the future in an uninhabited land. He had hoped to stay out of this era's conflicts, but then discovers that his younger sister from his previous life has also been reborn in this dynasty. She is his half-sister, Li Mingda, nicknamed Sizi.

And so Li Kuan and his sister settle into a carefree, futuristic life in the Tang Dynasty.

It is only when the city of the future he built is revealed to the Tang imperial clan that Li Shimin learns what the future truly holds.