[It is hard to tell-- when you're in an ayakashi realm, it's a lot harder to notice the presence of any one individual ayakashi (the clothes are ayakashi). But her reaction, like she's noticing and then rationalizing away that it's their first time meeting, makes him lean in the direction of some outside influence anyway.]

Haha, sorry, sorry! [he gently shakes his drink again as if it explains everything.] You wouldn't believe the lines.... But if that's the case, should we re-introduce ourselves to each other? [He says it like he's just teasing, maintaining that friendly smile and playing it as if they're picking up some long-ongoing banter or running joke that he and mystery-san have had.] You can tell me if I get it wrong.

[He stops walking in order to take her hand gently in his and make a theatrical, sweeping bow over it, purposefully hamming it up (like, more than his usual amount, which is saying something).] Nice to meet you. My name is Natori. And you are?

[And then he looks up, eyes twinkling at their very legitimate definitely preestablished inside joke as if to say 'does that sound right?']