Cross Game

The Kitamura family, and Tsukishima family have always been close, Kitamura owns a sporting goods store and close by the Tsukishima's owns a batting center which also has a cafe.
The familys children have been friends since birth, especially Kou Kitamura and Wakaba Tsukishima, who were born och the same day. Wakaba basically treats Kou as her boyfriend, which lately have been causing some friction between Kou and Wakaba's younger sister Aoba, as she thinks Kou is taking her sister away from her.
But one day things change, when a terrible accident happens.