Of course, since Chu Du was asking Fang Yuan to go and invite people from Crazed Demon Cave, he had also given Fang Yuan some methods to defend against the demonic sounds, and some information regarding the patterns, strengths and weaknesses of these sounds.
"Regardless, I have to go."
Chu Du and Heavenly Lord Bai Zu were competing over Hei Fan grotto-heaven, this originated from Fang Yuan's actions. He had benefits linked with Chu Du, he was also involved with the attack on Iron Eagle blessed land, all in all, he was deeply related to the issue.
Fang Yuan acted quickly, immediately setting off.
Using the super Gu formation, he teleported out of Lang Ya blessed land, heading towards Crazed Demon Cave.
There were no issues along the way.
More than ten days later, Fang Yuan stopped in the air, looking down.