There was a suspicious incident in the South China Sea. Queen Ai's brother of Yukang joined forces with the leader of the Liang Kingdom to force the palace to usurp the throne. Concubine Hui and her children returned to the court to protect the safety of the saint, and both the emperor and the concubine died. Emperor Chunqu and the sixth prince defected to their maternal ancestors, fled to the northwest, and wandered to the Shu Kingdom in the southwest. Many years later, he returned to Daqi and embarked on the road of no return.