Ashita no Joe

is a critically acclaimed boxing manga written by Ikki Kajiwara and illustrated by Tetsuya Chiba in 1968 that was later adapted into an anime series and movie. The title means "Joe of tomorrow" or Tomorrow's Joe. Outside Japan it is also referred to as Rocky Joe or Joe. It was adapted into a live-action film that premiered in Japan on February 11, 2011.

Plot
Joe Yabuki is a young man living in the slums of Tokyo. But, one day he meets Danpei Tange, a former boxer, who discovers his potential in boxing and tries to make him into a champion. Due to petty crimes, Joe is sent to a juvenile prison. There Joe mets Toru Rikiishi, a promising boxer, who knocked him out with one blow when he attempted to escape prison. Slowly but surely, Joe realizes his own potential. Joe begins his boxing life, step by step, with only one goal in mind... To Defeat Toru Rikiishi !!

Official

 * Chiba Tetsuya Official Site
 * Official Konami website of Ashita no Joe Makkani Moeagare!
 * Official Konami website of Ashita no Joe Masshiro ni Moe Tsukiro!