[Frisk nods, nibbling away at their muffin. The distraction is enough that their mood is starting to improve again, and Frisk doesn't mind educating humans about monsters at all.]

Mmm, kinda. They were all stuck underground for a long, long time. Humans forgot about 'em, but then I fell down an' th' Barrier was broken an' ev'ryone could come out. That was...a month ago, b'fore I got here.

[Frisk's smile brightens a little more.]

Not alla th' humans are happy 'bout it, but we're doing okay, I think.