Rome.
Yang Yi had long wanted to visit Rome, and now that he was here, he truly took a stroll down its streets, albeit only around a few places controlled by the Grey-cloaked People.
Xiao Ran and Yang Yi disguised themselves as a couple, acting very intimate with each other, often holding hands and linking arms, then donning sunglasses, with the long-haired and beautiful Xiao Ran taking a selfie every few steps or asking Yang Yi to snap a picture of her.
Why did Yang Yi and Xiao Ran need to disguise themselves as a couple? It was because they were both from Huaxia, a handsome man and a beautiful woman together—it would be odd not to pretend to be a couple, but rather some other relationship.
As for why they didn't go out with Kate, that's because although two tourists from Huaxia might attract some attention, their presence wouldn't arouse suspicion.
For spies, sometimes high-profile and eye-catching behavior is a kind of cover.