Riko Tachibana, coolest tomboy girl in the class .

She runs faster , hit harder and never back down from fights .

But lately , ...she feeling something strange.

Her childhood friend , Daichi . Whenever he smiled at her , her heart fluttered , her heart beat raised .

To her , this could be just the start of romance in her life .

But one problem -

Daichi Sakamoto is a dense as a brick wall when it comes to romance .

and he's been treating like B.R.O - some rival , some guy . And don't she her as a girl .

Will she can ever tell him " Please , I am not your B.R.O . ?