In the year 1925, two 14-year-old Japanese high school girls, Koume and Akiko, defy societal expectations by forming a baseball team after a male player suggests women should prioritize homemaking over education. Battling against the prevailing notion that baseball is exclusively for boys in an era where even running is deemed improper for females, the girls encounter challenges in recruiting members, gaining parental approval, and mastering the intricacies of the sport.