Please help me find this!!! I'm desperate

It's a shoujo-comedy manga where the female is not the typical beautiful girl and she is from the remote side of the country, the boy is your typical get along with everyone but has his own secret type. The title has something to do with flip-flops? Or floaters or something I forgot ,also it's a typical black and white manga and not colored. The girl just wants to makes friends and is successful as well and she is also the president of the class, she volunteered herself. Pls help me find thisss plsss ╥﹏╥