Yunzhou Mainland is a vassal state of Shangliang, Xialiang and Western Chu. For hundreds of years, the imperial capital Yunqidu has firmly controlled the three vassal states. Each vassal state has its own king, but only the Emperor of Yunzhou can be called the emperor. The vassal states pay tribute every year and can send aspiring people to the imperial capital Chengjunyuan to learn secret arts, martial arts, medical skills, etc.
Emperor Xuantai's father was addicted to pleasure, and the imperial power accumulated over hundreds of years in the imperial capital disappeared. Even if Emperor Xuantai had the talent to deal with the world, it would be difficult to reverse the decline. The aristocratic families of the imperial capital were eyeing him, the growing vassal states, Lanzhou where the imperial power was difficult to penetrate, and the mysterious Qianshan...
Xi Weiyu, once the most beautiful woman in the imperial capital, only wanted her daughter to live a happy life and not make the same mistakes as herself. However, she was instigated by someone with ulterior motives to reveal her secret to the public. Princess Xiyue, who had been hiding in Qianshan for several years, was forced to get involved in the turmoil of the Yunzhou Continent...