The Sword Immortal's old friend, Nichola's master

"Perhaps, even if I am willing to give in, you won't get what you want."
Milo glanced at the void somewhere on the side, and the corners of his mouth rose slightly.
What does the sword immortal mean by this sentence?
Is this a concession or not?
The powerful men looked at each other, unable to understand the deep meaning behind Milo's words.
"As long as the Sword Immortal gives in, we are willing to cooperate."
An old ancestor of the holy land said.
The implication was...