Tao Yuan, a girl who just graduated from college, inexplicably traveled back to the body of a generation of emperor Li Yu. She reluctantly accepted her fate and joined forces with Zhang Jue, Zhou Zong, and Lin Renzhao to delay the demise of the Southern Tang Dynasty. When he met the Emperor of the Northern Song Dynasty, he found that this man was someone he cherished and regarded as a close friend. From then on, the moon shines like a train, with sorrow and anger adding up, and there is no way to avoid it.