Holy shit, Emperor Norton got referenced in a manga. What the hell. This comic's got some crazy-ass refrerences, to be honest.
Anyway, most people have no idea what Christmas is about, anyway, or how it became what it is, so whatever.
Also more Ichikawa reacting to Kawashima and Kanzaki getting lewd over otherwise mundane shit. Classic content for this manga.
... Shit, even the other popular girl, Amamiya, isn't really that well-off? Ichikawa is really the wealthy, good-looking, talented girl of the lot. She has like everything. She just hasn't gotten herself a boyfriend yet, same with Amamiya. But only Amamiya is particularly worrying about that fact. She's also far more athletically-focused than Ichikawa, it seems, and not as multi-talented. Hell, she's not even doing athletic stuff for fun, either, which makes it even sadder. Last time we saw her playing against Ichikawa, it felt like she wasn't really doing as well- she was sweating a lot more than our protagonist.
And Ichikawa figures out so readily that Amamiya is actually a pure maiden, once enough facts come to light... hahaha... Which also features more commentary on gender perceptions, like the differences in the value and meaning of purity. To be fair, that's been changing in general, but still...