Cross Game is a romantic comedy sports manga series written and illustrated by Mitsuru Adachi and published by Shogakukan. It was serialized in the of the shōnen manga magazine Weekly Shōnen Sunday from 11 May 2005 (issue 22/23 2005) through 17 February 2010. The series is about the high school baseball players Ko Kitamura and Aoba Tsukishima and their attempts to fulfill the dream of Aoba's dead sister, Wakaba, of seeing them play in the national championship tournament in Koshien. In 2009, it received the Shogakukan Manga Award for shōnen manga. The series is divided into multiple parts. Part 1, "The Season of Wakaba", consists solely of volume one, and takes place while the main characters are in elementary school. Part 2, "The Season of Aoba", consists of volumes two through fourteen. It begins four years later with Ko in his third year of junior high school and continues into high school. In Part 2, the chapter numbering begins again from one. In October 2008, the series went on hiatus at the end of Part 2 and was resumed in March 2009 with Part 3, which is untitled, beginning with Ko in the summer of his third year of high school.