[Not at all. He really isn't. The only evidence she has is never having seen him before. There aren't really that many individuals within the dome, and she doesn't recognize him from any defense force files, either. Not that there's a lot there to go over. And really only if someone makes it onto their watch list. The touch of embarrassment doesn't go unnoticed, and she shakes her head. If anything he looks well put together. Maybe a little more polished than she's used to seeing most people within Marina. There's nothing out of place, his clothes formal and manners polite.
If he stands out, it's because she thinks there are a number of individuals that would find him attractive, and because he's well dressed. The fact that he isn't human is apparent to Yuuki, but she hardly thinks of it. Particularly in the moment.]