Datte Aishiteru 

The high school second grader Nao secretly likes Rin, who is in the same basketball club. She didn't want to destroy the "friend" relation, and couldn't convey her feelings; but, one day, Rin falls in love at first sight?! Moreover, the person is a beautiful senior, Michiyo. And a junior, Kouta, is approaching Nao--?!