The military protagonist of a modern novel who became the crown prince of another country could refer to the following plot: The protagonist was born in a military country and received strict training from an early age to become an outstanding soldier. He had performed well in the war and made many contributions, so he was promoted to a high-ranking general. During an important military operation, the protagonist learned that another country was planning a war. The protagonist decided to take action to prevent the war from happening. He went deep into the enemy's rear to obtain important information and joined forces with local forces to successfully stop the war. However, the protagonist was not satisfied because of this. He realized that this war would pose a huge threat to other countries, so he decided to leave the army and become a private detective to help other countries solve the threat of war. In his investigation, the protagonist discovered a mysterious organization that had a powerful military force and was planning a bigger war. The protagonist decided to join the organization and work with the other members to stop the war. In the battle, the protagonist met his true love, a crown prince from another country. The protagonist found that he had fallen in love with the girl, so he decided to give up his duty and fight with her family to stop the war. In the end, the protagonist successfully prevented the war from happening. He and his family became the victims of the war, but they did not give up and continued to work hard to protect the world.