Summary of the story [from wikipedia]:

Hikari Hanazono has always been second to Kei Takishima. When they were six years old, their pro-wrestling loving fathers introduced them to each other. Assuming that she was the best in wrestling, young Hikari challenged Kei to a wrestling match only to be thoroughly defeated by him.
Ever since that fateful incident, Hikari swore to beat Kei in school grades, a sporting event - anything. To do this, she has enrolled in the same school as Kei since elementary. Now she attends Hakusenkan, an ultra elite school, that costs her carpenter father a lot of money. Hikari and Kei are the top two students in the school, with Kei holding firmly to that number one position. While Hikari considers Kei to be a rival and important friend, she is completely unaware that Kei loves her.
The story primarily focuses on Hikari and her constant attempts to defeat her one and only rival, Kei, and how she finds love in their rivalry.
The S.A'ers:

Hanazano Hikari
Hikari is the daughter of a carpenter. When Hikari was in Middle School she thought she could beat anybody at wresteling, till one day she tasted bitter humilation by losing from Kei. Since that day her goal was to beat Kei at something. She even enrolled in the prestigous school, Shirotsuji Private Academy, to keep competing with him. She's quite dense with everything that concerns her, however when it comes to her friends she understands them very clear. She is ranked Number 2.
[I'll continue the update tomorrow]
Manga:
Online Manga Scanlations [with English subs]: At OneManga
Anime:
There's going to be an 26 episode anime...the first episode will air on 6th of april!

I'm anticipating the anime, but I have a feeling that it won't be too great.
one of my favs. its cute and funny, plus the characters are very likable
! I havent read it recently though... I'm a lil behind.