Xu Le was the crown prince of the empire in the novel "The Visitor." He was a descendant of the imperial family and had inherited the royal bloodline. In the novel, Xu Le found out about his background in chapter 274. The federal government revealed his true identity and revealed that he was the prince of the empire. One of the reasons why he chased after the prince was to avenge his father. However, the specific details and background information about him becoming the Crown Prince were not mentioned in the search results provided.

Xu Le was the crown prince of the empire in the novel "The Visitor." He inherited the royal bloodline of the Empire and learned about his background in Chapter 274. The federal government publicized his true identity and revealed that he was the prince of the Imperium. One of the reasons why he chased after the prince was to avenge his father. Therefore, the reason why Xu Le became the crown prince of the empire was because of his bloodline and identity.
Xu Le was discovered to be the crown prince of the empire in the novel "The Visitor." In chapter 274 of the novel, the federal government revealed Xu Le's true identity and revealed that he was the prince of the empire. This news was confirmed by the dynasty after careful investigation. Therefore, Xu Le's identity as the crown prince of the empire was revealed in the novel.
Xu Le was the male lead in the novel "Spies". He was the crown prince of the empire. However, the specific details and background information about him becoming the Crown Prince were not mentioned in the search results provided. Therefore, he could not accurately answer the question of why Xu Le was the crown prince of the empire.
Xu Le was discovered to be the crown prince of the empire in the novel "The Visitor." In chapter 274 of the novel, the federal government revealed Xu Le's true identity and revealed that he was the prince of the empire. This news was confirmed by the dynasty after careful investigation. Therefore, Xu Le's identity as the crown prince of the empire was revealed in the novel.
Xu Le discovered that he was the Crown Prince of the Empire in the novel "The Spies". In this chapter, the federal government revealed Xu Le's true identity and revealed that he was the prince of the empire. Therefore, Xu Le's identity as the crown prince of the empire was revealed in the novel.
Xu Le had found out that he was the Crown Prince of the Empire in the novel "Spies".
The empire had confirmed that Xu Le was a prince through careful investigation and the news released by the federal government. When the news of Xu Le and Jian Shui 'er's engagement was broadcast on television, the empire immediately realized that Xu Le was not Feng Yu's son and knew that Xu Le was a prince. In addition, the federal government publicized Xu Le's true identity in chapter 274, revealing that he was the prince of the empire. Therefore, the empire confirmed that Xu Le was a prince through an investigation and the announcement of the federal government.
In the TV series " Le You Yuan," Li Ni eventually became the Crown Prince. In the 32nd episode, Li Ni, accompanied by Cui Lin, went to the Clear Sky Temple to discuss the matter of the heir apparent with the Xiao clan. In the end, he was recognized as the crown prince by the Xiao clan. In addition, the trailer for episodes 33-34 also mentioned the plot of Li Ni becoming the crown prince. Therefore, based on the information provided, it could be confirmed that Li Ni was the Crown Prince.
Crown Prince and Crown Prince were two different titles. According to the documents of Noble Prisoner and Nanjing Daily, Zhu Biao was the son of Zhu Yuanzhang and was made the heir and crown prince. And according to the documents of Great Ming Elegance, the conversation between the Crown Prince and the Crown Princess showed that they were a couple and had a son. According to the document " The Hat of a Prince of the Ming Dynasty "," A Study of the Apparels Unearthed from the Tomb of the King Huang of the Ming Dynasty ", the royal family members below the emperor of the Ming Dynasty, such as the crown prince, the prince, and the prince, had some differences in their clothing. In summary, the crown prince and the shizi were different titles. The crown prince referred to the emperor's son, while the shizi referred to the emperor's eldest son.
We can conclude that Ruan Xu is the main character of the novel," After Picking Up the Crown Prince by Mistake." However, the search results did not provide any specific information about Ruan Xu, so they could not provide any more detailed answers about Ruan Xu.