The world is divided into Dong Hao, Nan Jing, west Yue, and Bei Ji. All countries live in peace and coexist peacefully for nearly a hundred years. The East Hao Kingdom and the West Yue Kingdom both wanted to dominate the world, and each adopted different methods. The first girl is the princess of Beiji Kingdom and the marriage partner of Jun Haoyu, the crown prince of Donghao Kingdom. The first girl fell in love with her childhood sweetheart, the second boy, the son of General Zhenguo of Beiji Kingdom. Because she did not want to get married, she escaped from the palace after being offered a marriage. However, on her way out of the palace to look for the second boy, she unexpectedly met Jun Haoyu. In order to win back his lover, the second male protagonist finally lost his true heart and became unscrupulous for power. As the heroine and the hero get along day by day, the two gradually develop feelings for each other and renew their relationship from the previous life...