In his previous life, Xiao Xu did three things after sitting on the dragon throne:
1. Give your cheap brother a glass of poisonous wine
2. Moved the memorial tablet that his mother had cared about all her life into the Royal Ancestral Hall
2. A new tomb was built for His Highness Bai Xiyue of Yun Kingdom who imprisoned him back then.
According to legend, in the 14th year of Qingli, Xiao Xu fled from the border of Yun Kingdom and returned to Wu'an Kingdom alone. He also took a group of private soldiers to seize three border towns of Yun Kingdom while he was unprepared. He held up the heads of border guards at the birthday celebration of Emperor Xiao Ran of Wu'an Kingdom. Xiao Xu congratulated him with a great gift. In the next few years, Xiao Xu imprisoned the emperor's brother, defeated him three times, and ascended the throne. Finally, he gave Xiao Ran a cup of poisonous wine through the official roads under the Imperial City of Yun State, and then attacked with troops and burned the entire Imperial Capital of Yun State.
Since then, the world has been united. However, in the sixteenth year of Qingli, Xiao Ran returned to the court. The whole court was shocked. Before the two could fight again, Xiao Xu died of illness. His death decree passed Xiao Ran to the throne, and the world was in an uproar.
Intention: Reunion after breaking the mirror