Adapted from Tang Qigongzi's classic novel "Hua Xu Yin". Because of an imperial decree, the nine states were filled with gunpowder. On the day when Weiguo City was broken, Ye Zhen was unwilling to surrender to Chenguo and jumped from the tower to die for his country, but was unexpectedly rescued by a hermit. From then on, Ye Zhen changed his name to Junfu, traveled around the world, and used Huaxu Yin to rewrite the fate of many people, and saw all the love, hatred, and hatred in the world. Junfu met Mu Yan while traveling around the world, and developed feelings for him, and gradually recovered her memory and perception in the process. Mu Yan's true identity is Su Yu, the prince of Chenguo who disappeared. He exiled himself because he did not want to compete for the throne with his half-brother Su Xie. But fate eventually pushed Su Yu and Junfu into a battle for the world. In the end, in order to save Junfu, Su Yu gave up the throne that was within his reach. The love between the two has become a masterpiece of all ages.