Hayakawa Ryo, Age 15!
Hidehiko was a pitching legend and his daughter Ryo has inherited his gift, playing on the local sandlot she can strike out any challenger with ease.
Aired 08/04/1998EP 1 - Hayakawa Ryo, Age 15!

1998
Princess Nine
Keiko Himuro, Chairman of the Kisuragi School, puts together an all-girl baseball team led by Ryo Hayakawa, daughter of a legendary pitcher, in hopes of proving that girls can compete just as well as boys. Their goal: Koshien Stadium, where only the best teams get the opportunity to play.
(Source: Anime News Network)