- **Country name**: Dayong (it looks like Yonghe, but in fact it is desolate - the country name and the emperor's surname are ironic)
- **Royal Family**: Xiao family. The founder of the country, Xiao Yuan, started from a young age and conquered the world on horseback. He founded the country for 120 years and experienced four emperors.
- **Today**: The fourth emperor **Xiao Jue**, the reign name is **Chengyou** (established by the powerful minister, which means "accepting the blessing of heaven" - in fact, it is the "blessing" of the powerful minister, which is ironic)
- **First Emperor**: Xiao Jingyao, whose reign name was Jinghe, reigned for fifteen years, and died suddenly in the winter of the fifteenth year of Jinghe (suspected poisoning), when the prince Xiao Jue was fifteen years old. The late emperor was actually the "King of ZTE": he withdrew military power and investigated corruption, which affected the interests of the gentry and powerful people. The cause of his death is the first suspense in the book.
- **Accession**: In the spring of the 16th year of Jinghe, 16-year-old Xiao Jue ascended the throne and was replaced by Yuan Chengyou
- **The starting point of the story**: In the spring of the second year of Chengyou, Xiao Jue was eighteen years old. He pretended to be stupid for two years and practiced martial arts with his master for one and a half years.
