Nanlan is a small country located on the southwest border. In Nanlan's last years, the 14-year-old Princess Seven was granted the highest title of Princess Nanlan: the Thousand-Year-Old Lord by the emperor who knew that her destiny was about to end. She was also granted the marriage to the young master of the Yi village. The emperor passed away and his eldest son succeeded to the throne. Qiandie left the palace and lived in Baidie Villa according to his father's order, and met Li Yao, the son of Prince Daji. Half a year later, Baiyi noble Fan Sicheng's infringement gradually became apparent, and Emperor Yuan became a puppet. The legendary thing related to Nanlan's fate became a treasure that both Emperor Yuan and the Fan family wanted. Princess Qiandie, who received the last gift from the late emperor, became a clue to find the treasure. Princess Qiandie was forced to leave Nanlan and start a new life. The life of the Princess of the First Subjugated Kingdom... Then, Nanlan died, the Fan family built the Dacheng Kingdom, Princess Qiandie was displaced because of her special status, family feud and national hatred, engagement and love. Her footprints are not only the charming Caiyun South, but also the prosperous downtown and the deep harem in the prosperous era of Daji...