In the United States, there is a magical school, its name is Kassel. Everyone who can enter this school has dragon blood...
In Italy, there is the Vongola family, the most powerful family. Sawada Tsunayoshi, the tenth-generation leader of the Vongola family known as the youngest and most powerful in history, and his guardians.
What will happen when Lu Mingfei, the highest level "S" level in Kassel Academy, and Sawada Tsunayoshi, the strongest in Vongola, meet?
When the Anti-Japanese War swept across northern Italy, when the "SS" level mission of Kassel College was carried out by Lu Mingfei, when the Dragon King "King of Earth and Mountain" Fenrir awakened in Beijing, China...
A wonderful drama is about to take place!
Let's wait and see!