Was he threatening them?
Yes, he was.
Everyone knew that.
The three experts were visibly annoyed.
If an average Joe with the Eternal Realm were making this threat, they would shrug it off.
Nevertheless it was not an average Joe. It was an exceptional genius of the Green Fire World.
No one knew what he was capable of, but Master Ku's invitation sure said a lot.
Even the Void Temple Master wanted to recruit him.
It would be very easy for him to become a Dao Master, or even a Holy Master. It was also possible that he could become someone like the Void Temple Master and Dao Yuanzi.
Most importantly, his battle strength was excellent too.
He was just an expert with Eternal Realm but he managed to resist Master Ku. He would have enough powers to face off against Ape Holy Master when he became a Dao Master.