Zhou Yunze was tragically set up by the emperor to go to Youzhou on errands and to look at candidates for the county princess. Just when he was full of sorrow, he unexpectedly met a rather interesting little girl. He claimed to be superb at chess, but she played him on the chessboard again and again. Her skills in figure painting were astonishing. She could accurately capture their charm with just a few glances, and even helped him find the remnants of the previous dynasty. It was a great achievement! He was so happy that he found out that she was the sixth girl from Duke Dingguo's mansion whom he wanted to meet. However, before getting married, he had to clear out some troubles for her - she had heard a big secret when she was young, which led to the pursuit of thieves and put her life in danger...