Hard to tell if someone looks plain in a manga. She mostly looks slightly depressed.
She wanted to talk about her numbers. Sad witch has to remain silent about that.
That's a lot of text just saying she has numerical OCD (though distinct from arithmomania).
Second one is correct. She's a bodyguard indirectly sent by the king.
Girls be trying accidental meetings. I'm not sure I've read any story where that actually works out, other than if it's following a script.
Right, I almost forgot she was the only girl on the council. For reasons.
Yeah, I'm quite sure a sexy pose doesn't work on humans if you're a cat. Being cute can work, though. But on the other hand, I also don't see what's sexy about that pose.
So I get the impression she was shocked.
Calling her a squirrel is way too accurate.