This is a story about Anjou, a stylish girl who's very unabashed about sexual topics, and Seto, a "diligent" and self-effacing boy. She constantly teases him by saying provocative things and suggesting that they sex it up and then retracting it by saying "Just kidding." And she doesn't seem embarrassed about showing her skin--her cleavage, the nape of her neck, her armpits, her stomach. This attitude of hers along with his own low self-esteem makes Seto believe that there's no way she could actually be interested in him, even though she's basically confessed to him multiple times (most blatantly in chapters 13 and 22). Once she learns that his ears are an erogenous zone, she makes the most of that information and rubs them just to watch him squeal.
After chapter 26, it feels like the story just regressed. By that point, they've already gone on a date, Anjou's already confessed that Seto is precious to her and that she's trying to seduce him and make him interested in her, and he's already seen her emotionally vulnerable side. And yet, rather than having their relationship continue to deepen, it just reverts back to the shallow teasing and flirting they were doing before. This is just barely acceptable because of how pathetic and self-hating Seto is portrayed to be. At this point, we also get a larger emphasis on their friends--Inuyama, Toyoda, and Chita.
[Reviewed at chapter 50]