Elvin's question was too idealistic; Yang Yi simply couldn't answer it—more accurately, there was no correct answer to the question.
Since the cleaners' previously dispatched agents could guarantee absolute loyalty, yet they still chose to betray in the end, then the Grey-cloaked People must possess some unique trait. For the cleaners, why the Grey-cloaked People could achieve such loyalty might be their primary concern.
But here's the problem: Yang Yi was no longer someone the cleaners could particularly trust. So, how could he ensure he wouldn't truly turn to the Grey-cloaked People, especially after the cleaners had made significant sacrifices?
After thinking for a long time, Yang Yi finally said dejectedly, "I can't guarantee that. I can only say I will never be turned, but I can't prove it to you."
Elvin nodded, "Yes, that's the biggest problem."