Princess Wang Xuan of Shangyang was born into a prominent family. She had enviable looks and talent, but she was reluctantly involved in chess games and was used as a bargaining chip several times. Wang Xuan was forced to give up her childhood sweetheart and marry Xiao Qi, the Prince of Yuzhang, who held a large number of troops. The two experienced the Helan Zhen disaster, the Ningshuo disaster, the Huizhou mutiny, etc., and gradually developed from initial distrust to soul mates. After many changes, Wang Xuan always adhered to the original intention of "caring for the world" and worked side by side with Xiao Qi to protect the people's homes.