The fact that the Buddhist sect was so powerful even in the cultivation world was a Testament to their strength. To be honest, Zhao Hai really did not want to provoke them.
However, the key lay in these 18 volumes of cultivation techniques. They were too powerful. It was so powerful that no matter who saw it, they would not be able to resist cultivating it. Even Zhao Hai was the same.
Although Zhao Hai had his own concerns, these 18 cultivation techniques were too attractive. If he could learn them, he would have even more attack methods.