The Crown Prince committed suicide. When the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince's position and placed the Eldest Princess under house arrest. The Eldest Princess attempted to assassinate the Qing Emperor but failed. In the end, the Crown Prince and Eldest Princess chose to commit suicide. Therefore, the Crown Prince did not become the Emperor.

The Crown Prince and the Second Prince committed suicide during the Qing Dynasty. As the Crown Prince and Eldest Princess's matter was exposed, the Crown Prince faced the crisis of being deposed. The Eldest Princess sent people to assassinate the Qing Emperor, but the assassination failed. In the end, the Eldest Princess, Crown Prince, Second Prince, and Empress all chose to commit suicide. Therefore, they did not become emperors.
During the Qing years, the Crown Prince and the Second Prince committed suicide. As the Crown Prince and Eldest Princess 'matter was exposed, the Crown Prince faced the crisis of being deposed. The Eldest Princess sent people to assassinate the Qing Emperor, but the assassination failed. In the end, the Eldest Princess, Crown Prince, Second Prince, and Empress all chose to commit suicide. Therefore, they did not become emperors.
In Joy of Life, the Crown Prince and the Second Prince committed suicide. As the Crown Prince and Eldest Princess 'matter was exposed, the Crown Prince faced the crisis of being deposed. The Eldest Princess sent people to assassinate the Qing Emperor, but the assassination failed. In the end, the Eldest Princess, Crown Prince, Second Prince, and Empress all chose to commit suicide. Therefore, they did not become emperors.
In Joy of Life, the Crown Prince and the Second Prince committed suicide. As the Crown Prince and Eldest Princess's matter was exposed, the Crown Prince faced the crisis of being deposed. The Eldest Princess sent people to assassinate the Qing Emperor, but the assassination failed. In the end, the Eldest Princess, Crown Prince, Second Prince, and Empress all chose to commit suicide. Therefore, they did not become emperors.
The Crown Prince and the First Prince in Joy of Life were not the same person. The Crown Prince was older than the Eldest Prince. The Crown Prince was conferred the title of Crown Prince the moment he was born and was not in the Prince Sequence. The First Prince's mother was not the Empress. Therefore, it could be concluded that the First Prince of Joy of Life was not the Crown Prince.
In Joy of Life, the prince ended up committing suicide. After the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince's position and placed the Eldest Princess under house arrest. After the Eldest Princess failed in her attempt to assassinate the Qing Emperor, the Crown Prince and Eldest Princess chose to commit suicide. Therefore, the Crown Prince did not become the Emperor.
In Joy of Life, the prince ended up committing suicide. After the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince's position and placed the Eldest Princess under house arrest. After the Eldest Princess failed in her attempt to assassinate the Qing Emperor, the Crown Prince and Eldest Princess chose to commit suicide. Therefore, the Crown Prince did not become the Emperor.
In Joy of Life, the prince ended up committing suicide. After the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince's position and placed the Eldest Princess under house arrest. After the Eldest Princess failed in her attempt to assassinate the Qing Emperor, the Crown Prince and Eldest Princess chose to commit suicide. The Crown Prince's identity was only in name. He did not have the support of Chen Pingping from the prosecutor's office, nor did he have the support of Fan Jian or Minister Lin. He did not even have the Emperor's trust. Therefore, the Crown Prince committed suicide.
In Joy of Life, the prince ended up committing suicide. After the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince's position and placed the Eldest Princess under house arrest. After the Eldest Princess failed in her attempt to assassinate the Qing Emperor, the Crown Prince and Eldest Princess chose to commit suicide. Therefore, the Crown Prince did not become the Emperor.
In Joy of Life, the prince ended up committing suicide. After the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince's position and placed the Eldest Princess under house arrest. After the Eldest Princess failed in her attempt to assassinate the Qing Emperor, the Crown Prince and Eldest Princess chose to commit suicide. Therefore, the Crown Prince did not become the Emperor.