Even in several collaborations in the past, they had already reached an agreement: during the time when Yuanshi Tianzun and others take action against Hong Jun, the Earth Dao and Human Dao must not exploit the situation.
It's okay not to help!
But they shouldn't add chaos, nor should they side with Hong Jun or stab the Three Pure Ones in the back.
Most of them initially intended to remain neutral, but seeing the current situation, Hong Jun actually hopes they will unite against a common enemy!
Hong Jun wants to see if the power of the gathered Primordial Saints is capable of defeating him, the Daoist Ancestor.
"Such a grand event, how could it be without me?"
When the saints gathered on Kunlun Mountain, Demon Ancestor Luo Hou had already arrived uninvited, his endless "Primordial Demon Qi" dyed the heavenly dome pitch black.