Daiya no A

It is a manga of high-school baseball. The main character, who is a pitcher from a country high school, accidentally gets teamed up with a catcher from a school with an elite baseball team. He decides to quit his school to attend the school that this catcher plays... Winner of the 53rd Annual Shogakukan Manga award (2008) and the 34th Annual Kodansha Manga Award for the Shounen category.