Cross Game is a romantic comedy sports manga series written and illustrated by Mitsuru Adachi and published by Shogakukan. The series is about the high school baseball players Kou Kitamura and Aoba Tsukishima, who are bound together by Kou's relationship with Aoba's dead sister, Wakaba, and by their efforts to fulfill Wakaba's last dream of seeing them play in the national tournament in Koshien Stadium.