Princess Nine, or Princess Nine Kisaragi Girls High Baseball Club (プリンセスナイン如月女子高野球部, Purinsesu Nain Kisaragi Joshikō Yakyū-bu?), is a 26-episode Japanese anime broadcast in Japan in 1998. The television series was produced by Phoenix Entertainment in Japan, released by ADV Films in North America, aired from April 8 to October 14, 1998 on NHK, ran for 26 episodes, and six volumes of the series were released on VHS and DVD. The show is listed at Animeondvd.com as a recommended series.
The story concerns the trials of nine girls at the Kisaragi School for Girls who form a baseball team for the purpose of playing on equal footing with boys' teams at the most prestigious high school tournament in Japan, The National High School Baseball Championship. Their aim to qualify for, and ultimately to champion, the final rounds of the tournament which is held each year at the Koshien Stadium. They are led by ace pitcher, Ryo Hayakawa, a daughter of a former rising pitching star in Japan.
Ryo Hayakawa had given up on her dreams of going to high school long ago and was content with helping her mom in their family restaurant, the Shino Oden Bar. As her final year of middle school was drawing to a close, she had grown accustomed to being called in to help out the Wildcats, a local sandlot team, by pitching the final innings when they were in a tight spot. Little did Ryo know that her miraculous pitches would soon be seen by someone with their own dreams.
During the celebration after a game, two men from a rival team show up at the bar and start causing trouble as they degrade Ryo's abilities. A visiting drunk recommends a test, for Ryo to prove herself by striking out the two men. She soon finds herself on the pitcher's mound pitching against the two lackluster loudmouths, when a true contender appears on the scene. He is Kisaragi Boy's High School's star hitter Hiroki Takasugi. He manages to get inside Ryo's mind and convinces her to throw him a fastball that he can connect without it fouling. He belts the ball right at Ryo, but she catches the ball in her glove and is blasted backward by the force.
The three Wildcats onlookers and the drunken umpire rush over to Ryo to discover that she's managed to hold on to the ball. Hiroki is called out, and a moment of shock falls over him. He strolls over to Ryo and tries to help her up. She falls back down due to an injury to her ankle, so he grabs her and puts her on his back. Ryo struggles all the way home, but whether she likes it or not, she's just made herself a new boyfriend.
All of this ends up being a test that was perpetuated by Mrs. Keiko Himuro and brought to fruition by the drunk, Mr. Kido. Ryo is soon called in for an interview at Kisaragi Girls' High School and given an enticing offer: a full scholarship to a very prestigious high school, on the condition that she plays baseball for the new girls baseball team and that the team makes it to Koshien, the national high school championships, in three years. The thing is, there's only one player on the team so far, and you need nine to make a team complete. So, it's now time to go and find the rest of the girls and get some type of training in. Let's just say, that's going to be a feat in and of itself.