Spoiler potential:
well the reason I say that is because when he gets back to the hotel and the android is snatching around trying to grab the fairy. Once the fairy is revealed he doesn't realize she's working for the queen until she starts speaking elvish. Then he decides to talk to the other 3. The way it unfolded just made it seem like he hadn't put it together yet.
Also I think there was a typo in one of the hot spring scenes. When the MC is there with Kali's friends and he is talking to the history nut. When she's talking about her father catching free elves and the MC asks if it's common. She replies no it's not common. That 15 is a low number. If I'm reading it right I think it's supposed to say 15 is a high number but I might be misreading it. I think I made a save right before that point so I can send SS if you need to see which part I'm talking about in game.
Also I hope I didn't offend with my fairy comments. I really enjoy the game and the way things tend to work out. It was just something that didn't sit right with me but I know that's how the story is going. It was also weird that later on Sylvia knew all about the fairies beforehand and knew they were spies and were all around already and everything.