A story that follows Xu Fengnian, an arrogant yet gifted young noble whose father harbors high hopes for him. After several hardships, he grows in strength and becomes a protector of the nation.
Xu Fengnian treads an unknown path in the world of jianghu. Although the road is long and laden with ruthless killing, he perseveres in elevating his martial arts skills. Xu Fengnian is motivated by his mother’s vengeance and forms friendships with individuals from different walks of lives.
When Beimang began its attack against the Central Plains, Xu Fengnian returns from his travels to lead the iron cavalry in its defence. Infighting within the imperial court results in the deaths of 300,000 soldiers, yet Xu Fengnian fights to regain the lost ground to protect the common people.