This is a Great Tang Empire that has gone astray, the monarchy has fallen, and the empire is at sunset. This is another era when empires and aristocratic families coexist. Fifteen years ago, the Anshi Rebellion finally subsided, but the Huihe people peeped at the emptiness of the Tang Dynasty and drank their horses. In the Central Plains, people live in misery, and the Tang Empire is in danger under the precarious wind and rain. The seven great families joined forces to expel the Tartars and restore the country, but they gradually embraced their own self-respect. The most humble son of the Zhang family in Hedong, but one day, he suddenly discovered a big secret hidden in his life experience. Since then, Zhang Huan has embarked on a difficult road full of darkness. (The history of this book is purely fictional )