This has nothing to do with Christmas, but everything to do with Christmas. It is the opening theme to the Haruhi movie, The Disappearance of Haruhi Suzumiya. It takes place in December right around Christmas. The SOS Brigade would've had a nabe Christmas party unfortunately developments happened that side tracked the holidays. You just got to watch it. Of course, I've been telling you this for years now, but no one listens to me, because I have a blog. First, watch the two seasons of Haruhi and then watch the movie. I swear to kami-sama that you'll enjoy! I think.
Labels: anime, The Melancholy of Haruhi Suzumiya
You didn't miss much with the ending of season 2. Beyond the Endless Eight debacle was the Sigh of Suzumiya Haruhi which is the making of the SOS Brigade movie. Not the greatest arc in the series. I didn't find it too interesting when I read the light novel.