The Queen of Canglan Kingdom sent Concubine Shu away with a glass of poisonous wine. When the Ninth Princess climbed out of the dog hole in the palace wall, she held in her hand half a piece of shredded paper that her mother had given her.
After running south for three days and three nights, she collapsed from exhaustion in the dense forest. When Prince Xiao Heng of the Xiling Kingdom helped her up, she was covered in wounds and only said three words: "Is there any water?"
He gave her a bowl of water and later a bowl of porridge. Later, he handed over the entire Xiling to her.
She used the modern knowledge in her mind to start from an experimental field - building canals, drying fine salt, burning cement, paving official roads, building arch bridges, improving farm tools, breeding improved seeds, preventing epidemics, and building city walls. Three years later, Xiling went from a small border country that was so poor that no one wanted to take a direct look, to a powerful country in the Nine Domains with cement roads leading to all directions, granaries piled high on the mountain, and the four-nation coalition forces not breaking through the city walls for three days.
There was a severe drought in the Canglan Kingdom, and the queen sent someone to borrow food. She stood next to Xiao Heng and said nothing. Xiao Heng said for her: "The food in Xiling is only for friends."
When she crawled out of the dog hole in the palace wall that year, she only had half a piece of paper in her hand. Now she was standing on the road she was repairing, with the person standing next to her who had never let go of her hand.