Taishou Yakyuu Musume.

In 1925 (year 14 of the Taisho era) baseball is still quite unknown in Japan and there are only a few male teams. After being told by a baseball player that women should become housewives instead of going to school, 14-year-old Akiko invites her friend Koume to start a baseball team in order to prove him wrong. During this time, when even running was considered too vulgar for women, baseball is known as "what the boys do" and they face many difficulties when having to find enough members, to get permission from their parents and also when learning about the sport itself, which they soon discover to be more difficult than expected.The novels are set in 1925 when two 14-year-old Japanese high school girls named Koume and Sh?ko decide to start a baseball team in Japan where few baseball teams — male or female — exist at the time. First though, the two girls have no clue where to find nine players, how to use the equipment, and what even the rules are.