2 needed to calculate an average
When Koh was eleven years old, he lived a quiet and peaceful life, delivering sporting goods for his family's store and batting frequently at the Tsukishima Batting Center. Though Koh had no interest in baseball, he started the play the sport anyways after a series of events, much to the delight of his best friend, the beautiful Wakaba Tsukishima. However, soon life dealt Koh a tragic turn, changing him forever. Now, years later, Koh attends Seishuu Academy and is soon pulled back into the world of baseball. Alongside Wakaba's talented sister, Aoba; old friend and fighter Nakanishi; and plenty of new teammates and companions, Koh will once more pick up the pitcher's mitt and see if he has what it takes to be a champion.
Both of these manga are done by the same person and it's extremely obvious. Several of the characters look identical, and even act similarity. They both also share a similar theme (a girl in baseball). However, although they both have the same atmosphere, Idol A doesn't go quite as in depth as Cross Game does with its characters and baseball games due to it's length. Fans of one would enjoy the other for sure.