Bei si understood that Zhao Hai wanted him to withdraw all his troops so that they would have fewer casualties. Since Zhao Hai's troops were made up of undead creatures, they would be able to hold off the Nephilim Army for a while.
Bei si wasn't a fool. He was very clear that it was impossible to stop the demon Army by relying on demonic city. The last time the demon Army attacked, they had mobilized the entire continent's power to repel them. Many ninth-grade powerhouses had used sacrificial magic at the risk of their lives to seal those spatial cracks. It was said that the strength of the ninth-grade powerhouses at that time was much stronger than the current ninth-grade powerhouses. It was also after that war that many famous forbidden spells on the continent were lost. It could be said that the current magic level on the continent was not at all stronger than it had been during the first war with the demon race. It might even be weaker in the area of forbidden spells.
