Hao Ren and Vivian tried using various indirect questions on Becky as well as some of the other mercenaries there. They were trying to gleam information about the sirens or anything related to them, even a myth or a tale would have sufficed. But shockingly, no one from that world knew anything about the sirens. In conclusion, sirens did not exist there.
Raven 12345 had said something about the unusual creatures on Earth coming from The Plane of Dreams, and that led Hao Ren to believe that everyone in his group could publicly assume their original identities in the Dream Plane. He never thought Wuyue would be an exception.
Vivian was still checking with the mercenaries for more information about the mountain path. Hao Ren took the opportunity to pull Wuyue aside. "Seems like there are no sirens here at all. Where did the sirens on Earth come from then?"