Apart from cooperation, did Yang Yi have any other choice? Since there was no other choice, he naturally agreed with alacrity, not to mention that cooperating with the janitors was actually beneficial.
As for the benefits, Yang Yi didn't know yet.
Elvin, of course, was also satisfied with Yang Yi's stance. He nodded and smiled at Yang Yi, "Very good, from now on, we are partners."
"Is there anything I need to pay particular attention to?"
"Of course, secrecy. Never reveal the existence of the janitors to anyone. This isn't a reminder, it's a warning. Please believe me, if you can't keep your mouth shut, then we'll have to do it for you."
Yang Yi immediately said, "Of course, I understand the importance of secrecy to a spy. Is there anything else?"
Elvin seriously said, "Your contact person is me. I will give you a phone number. You can contact me after any progress, but please don't initiate contact about matters that are not related to the Grey-cloaked People."