General Yu Xian's military exploits were so high that the emperor was worried that his throne would not be preserved and gave the general the death penalty. However, the emperor spared the rest of the family. Later, General Yu Xian's eldest son served the country with loyalty. The emperor was uneasy again and wanted to repeat his old tricks. The eldest son led his soldiers to surround the palace. Worried about his own life, the emperor named his eldest son Prince Yu Yan, and he broke away from the imperial city. Later, the enemy invaded. Emperor Ru was cowardly and incompetent. In order to resist the invasion of the enemy country, he wanted to send Princess Yuqing to make a marriage. However, the person who made the marriage was an arrogant and domineering prince of the enemy country. It was said that the prince treated women cruelly, and he did not have a good life under him. The princess didn't want to marry, so she went to Prince Yan. After begging for many days, King Yan relented and agreed to help her. After the two got married, they gradually developed feelings for each other, and after expressing their feelings to each other, the two lived a life without fighting against the world. But the enemy king was greedy for Princess Yuqing and discussed with the emperor to marry her by force. Prince Yuyan died on the battlefield to protect Princess Yuqing. Fortunately, the battle was won in the end. Princess Yuqing and Prince Yuyan agreed that they would depend on each other for life and death, and finally committed suicide by swallowing medicine.
Purpose: Defeat the enemy and revitalize the country