The two fought to the death, but they were outnumbered and all died, leaving only the second daughter Tang Ying. What made Tang Ying even more angry was that her father died for the country, but in return he was charged with treason. In order to clear her father's name, Tang Ying resolutely went to Kyoto, but found that things were far from as simple as she had imagined. Was Yuan Lang, the second prince of the Great Qi Kingdom who had been held hostage for more than ten years, involved with the Northern Barbarians? Why did the woman who pretended to be him look so similar? What about the alien mentioned by Yao Niang in the Shadow Department? And the strange yet familiar memories that appeared like a neurosis... Too many mysteries are waiting for Tang Ying to solve.