Sorry for bad nglish

It's a high school shoujo manga where the mc is a nerd girl. She wears glasses and 2 braided hair and there's a famous guy in school. This guy is always being chased around by a bunch of girls cause the girls want to have sex with him (or something like that) but the guy only interested in the nerdy girl. I read it years ago i think the title there's a gakuen word but i'm not sure