Valentine’s Day is just around the corner, and Adachi once again finds herself unsure of how to ask Shimamura to spend the holiday with her. What’s more, she’s determined to whip up the best chocolates she can to make the event truly special, but she has no clue what Shimamura likes, and she’s no chocolatier... Against all odds, will her feelings get through to the girl she loves?

February 14th, a day like any other. But for Adachi, it's a huge deal--it's Valentine's Day, and Adachi's prepared her best chocolate for Shimamura ten days in advance! Now all that's left is to give it to her, but Adachi can't help but hesitate as the moment draws near...

Adachi is skipping class when she first meets fellow truant Shimamura in the gym loft, and just like that, a friendship is born. Except now Adachi's having dreams about kissing her, and she doesn't know what that means, but she's pretty sure it's not something you do with a friend. What are these strange feelings she has when she thinks of Shimamura? And is it possible Shimamura feels the same way?

The second floor of the gym. That's our spot. Class is in session right now, but they don't hold class in a place like this. This is where Shimamura and I became friends. What is this feeling? Yesterday, I dreamed of kissing her. I'm not like that, and I'm sure Shimamura isn't either. But...when Shimamura thinks of the word "friend", I want to be the first thing that comes to her mind. That's all.

Adachi and Shimamura are now in their second year of high school. Luckily, they’re in the same class this semester, but when Adachi sees Shimamura making friends with their new classmates so quickly, she starts to panic. Feeling left out, she begins distancing herself from Shimamura, who can’t help but notice that Adachi’s been on her mind a whole lot these days…

Going bowling on the weekend, singing old songs at karaoke—with all the time they’re spending together, Adachi and Shimamura are finding out lots of surprising things about each other. And as the seasons change and Christmas approaches, Adachi’s doing her best to come up with the perfect present for her unsuspecting crush. Can she plan the perfect Christmas date to show Shimamura how much she means to her?

BE MINE, VALENTINE It’s February 4th and Adachi has a question for Shimamura about Valentine’s Day—if, that is, she can muster the courage to ask. A lot can happen in ten days!