She had to stare owlishly at Papyrus with that impression, but it did remind her that Undyne had a whole lot against humanity. Humanity had trapped monsters underground, after all.

She looked to Papyrus, gave him a pat, and exchanged a brief uncertain look. Then she turned to Undyne.

"I understand what situation you've all come from, Lady Undyne, but I should stress to you that nothing would be gained by harming the humans here, or even this 'kid' you speak of. A mind can't be changed overnight, but I don't want you harmed by forces beyond any of our control. We're... still getting our bearings as Heroes of Light, here, and if we start harming each other and losing the peoples' faith in us, Bahamut will truly destroy us as well as our worlds."