He is the Great Wu Dynasty's foremost hostage: Shen Ping'an, the third illegitimate son of Changxing Marquis's heir, born to a concubine from a secondary branch of the family. From the moment he could speak, he displayed extraordinary intelligence and was dearly loved. But because his mother was a singer at the Imperial Music Bureau, his low status meant that, clever as he was, he was never considered worthy.
When Shen Ping'an was five, the Great Wu Dynasty lost a war against the Yunmo Kingdom. As compensation, it was forced to surrender two cities, eighty million taels of silver, and a prince to serve as a hostage. The emperor had only two sons and could not bear to send either of them, so he followed a minister's suggestion: adopt a son, make him a prince, and send him in their place. Changxing Marquis volunteered and put forward his five-year-old grandson, Shen Ping'an. The emperor found the child clever and charming, took a liking to him, and immediately named him Prince Qiongxiao before sending him to the Yunmo Kingdom that very day.
But Shen Ping'an died in the Yunmo Kingdom the following year. At that moment, a thirty-two-year-old man from the twenty-first century entered his six-year-old body. An orphan since childhood, he had once been a passionate young man, then worked hard to become a professor. Now, after dying suddenly, he had come to inhabit Shen Ping'an's body...