Princess Tianfeng's brain tumor was finally removed and her illness was cured. It seems that the imperial doctor cured her, that is, the general's wife whose husband was a general before, and later became an outlaw. Finally, the general's wife always thought that her husband was dead, but she knew that he was not dead, so she became a fugitive and died by taking poison.
However, Tianfeng is a princess, and Lyzjc is just a civilian and cannot be combined. Although they wanted to keep it a secret before, the reality is always reality. When they returned to the palace, Tieyi and Princess just separated. A couple separated because of their great disparity in status.
Finally, Cai Yu pretended to be a Tianfeng. Originally, he was very happy, but later Tie recognized that Cai Yu was pretending to be a Tianfeng, and the story ended.