Evil

He used the "Book of the Heart" to sell "evil" and used the wisdom of the world to lay out articles. The Fifth Kingdom of the Earth-the Kingdom of Mankind, a story that took place in 2100.
A huge empire used absolute force to destroy national borders, nations, and beliefs, and built a hierarchical society of "royal-noble-civilians.
The Imperial Palace, "SkyCity", was built at a height of more than 4,000 meters from sea level. Here are the most advanced technologies of mankind, no matter the sea level rise, the crust changes, the climate change, the outbreak of nuclear war, or the outbreak of viruses, it will not pose a threat to it, except for a bookstore owner named Tian.
Rebellion organizations such as the Iron Commandment, the Frontline of Freedom, Xingtian, and the Anti-Cross were dispatched.