I've watched this series last week and I fell totally for it.
This series is about Kozumi Risa and Otani Atsushi. Kozumi's too tall and Otani's too short. Kozumi fall for Otani and lots of circumstances happens until Otani realizes that he also has feelings for Kozumi.
Here's the story summary (from ANN)
"Risa Koizumi, taller than the average girl, and Atsushi Ootani, shorter than the average guy - their constant bickering and comical love-hate relationship is well-known throughout the school. They act similarly and love the same music, and their friendship is full of laughing, shouting at each other, and of course, lots of jokes about one another's height. But when Risa notices her feelings for Ootani growing, she's worried. She doesn't know if he can ever see her as more than a friend. With her friends rooting for her, she struggles to make him see how she feels about him, and that a romantic relationship between a tall girl and a short guy can work. Oblivious Ootani doesn't make things easy for her, but she stubbornly perseveres in her own unconventional way, determined for her feelings to get through to him, and finally be returned. If only she could do it without driving herself and everyone else crazy in the process..."
[I really liked Otani-kun after watching this series. He's too perfect, well maybe to balance the anime (^w^)]
I've also heard that there's a live-action adaptation of this. Tamaki Nami's in there that's why I think it's a MUST-WATCH!!
