The Other Sawamura

What happens if Sawamura Eijun had a twin sister? Meet fifteen year old Sawamura Hikaru, Ace batter and right fielder for Akagi Junior Highschool. There is just a small problem.... Hikaru is always mistaken for a boy, but she is a girl. However, when Takashima Rei comes and offers her brother a scholarship and some weird turn of events MR. Sawamura Hikaru gets a scholarship... what will happen if Hikaru goes to seidou disguised as a boy? will her batting or right fielding stay top notch or will she fall? will hikaru be found out?