Manga's name reminding . thanks

[kyoto]

Hello, Recently I've tried to search for a shoujo manga that I once read. I think I did like the style a lot, yet it's so long I couln't remember the name. So I'd like to ask you for help, with all the plot I can recall.

It's about a small school love between a tall girl and a boy who is just slightly higher than her. He asked her for love advises and then it turned out she was the one. There's a cute scene when he stood so close to her, for a kiss, because he said he thought he needs to stand higher when kissing, because the girl is so tall herself.

If you have anything in mind, please tell me about it.

Thank you!