No, Keine! Don't say it! Don't ruin the hope of a yukkuri!

Maybe she's just going to tell the yukkuri that Santa doesn't show up until the 24th? (what day is this strip taking place?)

Have they not noticed the fact that the fireplace is still lit?

i couldn't help but read Mokou's line in panel 4 in Wario's Taunting voice from SSBB.

Keine said:
Sorry to tell you this, but Santa is-...

"-going to have trouble getting down the chimney with it lit."
No clue if that possiblity can't be, but I have faith in Keine as a school teacher, boring lectures or not!

Keine said:
Sorry to tell you this, but Santa is-...

...Not going to come if you're watching.

Come on everyone knows that! And no trying to fake not looking! You gotta be sleeping.

Wait... Do Osa-Yukkuri sleep?

Zelinkokitsune said:

Wait... Do Osa-Yukkuri sleep?

That is a serious question.