The one who got betrayed was Lan Ming and she was the one who deserved to bring judgment on the traitors. He would just act as her sword. Even though he wanted to destroy the whole sect, he wanted to see what Lan Ming wanted.
Lan Ming lingered for a while, turning the already tense atmosphere even more tense and chilly. Their conversation was heard by everyone and that just gave them even more chills.
By now, they had realised that their life depended on this one man who was stronger than anyone they had even heard of. Even those people from Holy Lands weren't this terrifying.
The Four Peak Lords had already resigned to their fates as they knew that no matter what, they were going to die. But they didn't regret it, after all, they were going to die anyways if they had not rebelled against Song Junwan.
4 more chapters for next tier will be coming. Please wait for them, I'll upload in a few hours lol.