As alluded to in episode 0, this episode is the Valentine’s Day episode. If you’ve watched enough anime, you probably know the basic premise of an episode such as this, but Kimi ni Todoke doesn’t let us down in terms of eventfulness. Nice winter snowscapes in the episode — ironically, it is also currently snowing outside as I write this (though I can’t personally verify that from this room, since there are no windows here). I want to say more, but pretty much anything I say about the episode will end up being a spoiler, so I’ll just let you guys watch the episode, yeah?
An explanation of the Valentine’s Day tradition in Japan can be found under the “Bored” tab of this site. I’ve never liked the phrase “obligatory chocolate,” but that’s the super-literal translation, so we left it. In a short paragraph, “obligatory” (giri) chocolates are the ones you give as courtesy to those you have been close to (usually friends or co-workers, people like that), the people you have a (loosely speaking) close relationship with. Oh, wait, that wasn’t really a paragraph, was it? Oh well.
By the way, about a third of the way in, there’s a scene with Chizu-chan, and some horses. Since no one wants to see badly written puns in their subs, I’ll explain it long-hand here. うまい (umai) = delicious. ウマー (うまあ) (umaa) = “delish”. 馬 (うま) (uma) = horse. You see the joke?